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user32: Handle ctrl + home in edit control.
[wine.git] / dlls / user32 / edit.c
blobe367e6edce61a786270f5e42dd2376496f3113ef
1 /*
2 * Edit control
3 *
4 * Copyright David W. Metcalfe, 1994
5 * Copyright William Magro, 1995, 1996
6 * Copyright Frans van Dorsselaer, 1996, 1997
7 *
8 *
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
13 *
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this library; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
22 *
23 * NOTES
24 *
25 * This code was audited for completeness against the documented features
26 * of Comctl32.dll version 6.0 on Oct. 8, 2004, by Dimitrie O. Paun.
27 *
28 * Unless otherwise noted, we believe this code to be complete, as per
29 * the specification mentioned above.
30 * If you discover missing features, or bugs, please note them below.
31 *
32 * TODO:
33 * - EDITBALLOONTIP structure
34 * - EM_GETCUEBANNER/Edit_GetCueBannerText
35 * - EM_HIDEBALLOONTIP/Edit_HideBalloonTip
36 * - EM_SETCUEBANNER/Edit_SetCueBannerText
37 * - EM_SHOWBALLOONTIP/Edit_ShowBalloonTip
38 * - EM_GETIMESTATUS, EM_SETIMESTATUS
39 * - EN_ALIGN_LTR_EC
40 * - EN_ALIGN_RTL_EC
41 * - ES_OEMCONVERT
42 *
43 */
44
45 #include "config.h"
46
47 #include <stdarg.h>
48 #include <string.h>
49 #include <stdlib.h>
50
51 #include "windef.h"
52 #include "winbase.h"
53 #include "winnt.h"
54 #include "wownt32.h"
55 #include "win.h"
56 #include "imm.h"
57 #include "wine/winbase16.h"
58 #include "wine/winuser16.h"
59 #include "wine/unicode.h"
60 #include "controls.h"
61 #include "user_private.h"
62 #include "wine/debug.h"
63
64 WINE_DEFAULT_DEBUG_CHANNEL(edit);
65 WINE_DECLARE_DEBUG_CHANNEL(combo);
66 WINE_DECLARE_DEBUG_CHANNEL(relay);
67
68 #define BUFLIMIT_INITIAL 30000 /* initial buffer size */
69 #define GROWLENGTH 32 /* buffers granularity in bytes: must be power of 2 */
70 #define ROUND_TO_GROW(size) (((size) + (GROWLENGTH - 1)) & ~(GROWLENGTH - 1))
71 #define HSCROLL_FRACTION 3 /* scroll window by 1/3 width */
72
73 /*
74 * extra flags for EDITSTATE.flags field
75 */
76 #define EF_MODIFIED 0x0001 /* text has been modified */
77 #define EF_FOCUSED 0x0002 /* we have input focus */
78 #define EF_UPDATE 0x0004 /* notify parent of changed state */
79 #define EF_VSCROLL_TRACK 0x0008 /* don't SetScrollPos() since we are tracking the thumb */
80 #define EF_HSCROLL_TRACK 0x0010 /* don't SetScrollPos() since we are tracking the thumb */
81 #define EF_AFTER_WRAP 0x0080 /* the caret is displayed after the last character of a
82 wrapped line, instead of in front of the next character */
83 #define EF_USE_SOFTBRK 0x0100 /* Enable soft breaks in text. */
84 #define EF_APP_HAS_HANDLE 0x0200 /* Set when an app sends EM_[G|S]ETHANDLE. We are in sole control of
85 the text buffer if this is clear. */
86 typedef enum
87 {
88 END_0 = 0, /* line ends with terminating '\0' character */
89 END_WRAP, /* line is wrapped */
90 END_HARD, /* line ends with a hard return '\r\n' */
91 END_SOFT, /* line ends with a soft return '\r\r\n' */
92 END_RICH /* line ends with a single '\n' */
93 } LINE_END;
94
95 typedef struct tagLINEDEF {
96 INT length; /* bruto length of a line in bytes */
97 INT net_length; /* netto length of a line in visible characters */
98 LINE_END ending;
99 INT width; /* width of the line in pixels */
100 INT index; /* line index into the buffer */
101 struct tagLINEDEF *next;
102 } LINEDEF;
103
104 typedef struct
105 {
106 BOOL is_unicode; /* how the control was created */
107 LPWSTR text; /* the actual contents of the control */
108 UINT text_length; /* cached length of text buffer (in WCHARs) - use get_text_length() to retrieve */
109 UINT buffer_size; /* the size of the buffer in characters */
110 UINT buffer_limit; /* the maximum size to which the buffer may grow in characters */
111 HFONT font; /* NULL means standard system font */
112 INT x_offset; /* scroll offset for multi lines this is in pixels
113 for single lines it's in characters */
114 INT line_height; /* height of a screen line in pixels */
115 INT char_width; /* average character width in pixels */
116 DWORD style; /* sane version of wnd->dwStyle */
117 WORD flags; /* flags that are not in es->style or wnd->flags (EF_XXX) */
118 INT undo_insert_count; /* number of characters inserted in sequence */
119 UINT undo_position; /* character index of the insertion and deletion */
120 LPWSTR undo_text; /* deleted text */
121 UINT undo_buffer_size; /* size of the deleted text buffer */
122 INT selection_start; /* == selection_end if no selection */
123 INT selection_end; /* == current caret position */
124 WCHAR password_char; /* == 0 if no password char, and for multi line controls */
125 INT left_margin; /* in pixels */
126 INT right_margin; /* in pixels */
127 RECT format_rect;
128 INT text_width; /* width of the widest line in pixels for multi line controls
129 and just line width for single line controls */
130 INT region_posx; /* Position of cursor relative to region: */
131 INT region_posy; /* -1: to left, 0: within, 1: to right */
132 EDITWORDBREAKPROC16 word_break_proc16;
133 void *word_break_proc; /* 32-bit word break proc: ANSI or Unicode */
134 INT line_count; /* number of lines */
135 INT y_offset; /* scroll offset in number of lines */
136 BOOL bCaptureState; /* flag indicating whether mouse was captured */
137 BOOL bEnableState; /* flag keeping the enable state */
138 HWND hwndSelf; /* the our window handle */
139 HWND hwndParent; /* Handle of parent for sending EN_* messages.
140 Even if parent will change, EN_* messages
141 should be sent to the first parent. */
142 HWND hwndListBox; /* handle of ComboBox's listbox or NULL */
143 /*
144 * only for multi line controls
145 */
146 INT lock_count; /* amount of re-entries in the EditWndProc */
147 INT tabs_count;
148 LPINT tabs;
149 LINEDEF *first_line_def; /* linked list of (soft) linebreaks */
150 HLOCAL hloc32W; /* our unicode local memory block */
151 HLOCAL16 hloc16; /* alias for 16-bit control receiving EM_GETHANDLE16
152 or EM_SETHANDLE16 */
153 HLOCAL hloc32A; /* alias for ANSI control receiving EM_GETHANDLE
154 or EM_SETHANDLE */
155 /*
156 * IME Data
157 */
158 UINT composition_len; /* length of composition, 0 == no composition */
159 int composition_start; /* the character position for the composition */
160 } EDITSTATE;
161
162
163 #define SWAP_UINT32(x,y) do { UINT temp = (UINT)(x); (x) = (UINT)(y); (y) = temp; } while(0)
164 #define ORDER_UINT(x,y) do { if ((UINT)(y) < (UINT)(x)) SWAP_UINT32((x),(y)); } while(0)
165
166 /* used for disabled or read-only edit control */
167 #define EDIT_NOTIFY_PARENT(es, wNotifyCode) \
168 do \
169 { /* Notify parent which has created this edit control */ \
170 TRACE("notification " #wNotifyCode " sent to hwnd=%p\n", es->hwndParent); \
171 SendMessageW(es->hwndParent, WM_COMMAND, \
172 MAKEWPARAM(GetWindowLongPtrW((es->hwndSelf),GWLP_ID), wNotifyCode), \
173 (LPARAM)(es->hwndSelf)); \
174 } while(0)
175
176 /*********************************************************************
177 *
178 * Declarations
179 *
180 */
181
182 /*
183 * These functions have trivial implementations
184 * We still like to call them internally
185 * "static inline" makes them more like macro's
186 */
187 static inline BOOL EDIT_EM_CanUndo(const EDITSTATE *es);
188 static inline void EDIT_EM_EmptyUndoBuffer(EDITSTATE *es);
189 static inline void EDIT_WM_Clear(EDITSTATE *es);
190 static inline void EDIT_WM_Cut(EDITSTATE *es);
191
192 /*
193 * Helper functions only valid for one type of control
194 */
195 static void EDIT_BuildLineDefs_ML(EDITSTATE *es, INT iStart, INT iEnd, INT delta, HRGN hrgn);
196 static void EDIT_CalcLineWidth_SL(EDITSTATE *es);
197 static LPWSTR EDIT_GetPasswordPointer_SL(EDITSTATE *es);
198 static void EDIT_MoveDown_ML(EDITSTATE *es, BOOL extend);
199 static void EDIT_MovePageDown_ML(EDITSTATE *es, BOOL extend);
200 static void EDIT_MovePageUp_ML(EDITSTATE *es, BOOL extend);
201 static void EDIT_MoveUp_ML(EDITSTATE *es, BOOL extend);
202 /*
203 * Helper functions valid for both single line _and_ multi line controls
204 */
205 static INT EDIT_CallWordBreakProc(EDITSTATE *es, INT start, INT index, INT count, INT action);
206 static INT EDIT_CharFromPos(EDITSTATE *es, INT x, INT y, LPBOOL after_wrap);
207 static void EDIT_ConfinePoint(const EDITSTATE *es, LPINT x, LPINT y);
208 static void EDIT_GetLineRect(EDITSTATE *es, INT line, INT scol, INT ecol, LPRECT rc);
209 static void EDIT_InvalidateText(EDITSTATE *es, INT start, INT end);
210 static void EDIT_LockBuffer(EDITSTATE *es);
211 static BOOL EDIT_MakeFit(EDITSTATE *es, UINT size);
212 static BOOL EDIT_MakeUndoFit(EDITSTATE *es, UINT size);
213 static void EDIT_MoveBackward(EDITSTATE *es, BOOL extend);
214 static void EDIT_MoveEnd(EDITSTATE *es, BOOL extend);
215 static void EDIT_MoveForward(EDITSTATE *es, BOOL extend);
216 static void EDIT_MoveHome(EDITSTATE *es, BOOL extend, BOOL ctrl);
217 static void EDIT_MoveWordBackward(EDITSTATE *es, BOOL extend);
218 static void EDIT_MoveWordForward(EDITSTATE *es, BOOL extend);
219 static void EDIT_PaintLine(EDITSTATE *es, HDC hdc, INT line, BOOL rev);
220 static INT EDIT_PaintText(EDITSTATE *es, HDC hdc, INT x, INT y, INT line, INT col, INT count, BOOL rev);
221 static void EDIT_SetCaretPos(EDITSTATE *es, INT pos, BOOL after_wrap);
222 static void EDIT_AdjustFormatRect(EDITSTATE *es);
223 static void EDIT_SetRectNP(EDITSTATE *es, const RECT *lprc);
224 static void EDIT_UnlockBuffer(EDITSTATE *es, BOOL force);
225 static void EDIT_UpdateScrollInfo(EDITSTATE *es);
226 static INT CALLBACK EDIT_WordBreakProc(LPWSTR s, INT index, INT count, INT action);
227 /*
228 * EM_XXX message handlers
229 */
230 static LRESULT EDIT_EM_CharFromPos(EDITSTATE *es, INT x, INT y);
231 static BOOL EDIT_EM_FmtLines(EDITSTATE *es, BOOL add_eol);
232 static HLOCAL EDIT_EM_GetHandle(EDITSTATE *es);
233 static HLOCAL16 EDIT_EM_GetHandle16(EDITSTATE *es);
234 static INT EDIT_EM_GetLine(EDITSTATE *es, INT line, LPWSTR dst, BOOL unicode);
235 static LRESULT EDIT_EM_GetSel(const EDITSTATE *es, PUINT start, PUINT end);
236 static LRESULT EDIT_EM_GetThumb(EDITSTATE *es);
237 static INT EDIT_EM_LineFromChar(EDITSTATE *es, INT index);
238 static INT EDIT_EM_LineIndex(const EDITSTATE *es, INT line);
239 static INT EDIT_EM_LineLength(EDITSTATE *es, INT index);
240 static BOOL EDIT_EM_LineScroll(EDITSTATE *es, INT dx, INT dy);
241 static BOOL EDIT_EM_LineScroll_internal(EDITSTATE *es, INT dx, INT dy);
242 static LRESULT EDIT_EM_PosFromChar(EDITSTATE *es, INT index, BOOL after_wrap);
243 static void EDIT_EM_ReplaceSel(EDITSTATE *es, BOOL can_undo, LPCWSTR lpsz_replace, BOOL send_update, BOOL honor_limit);
244 static LRESULT EDIT_EM_Scroll(EDITSTATE *es, INT action);
245 static void EDIT_EM_ScrollCaret(EDITSTATE *es);
246 static void EDIT_EM_SetHandle(EDITSTATE *es, HLOCAL hloc);
247 static void EDIT_EM_SetHandle16(EDITSTATE *es, HLOCAL16 hloc);
248 static void EDIT_EM_SetLimitText(EDITSTATE *es, UINT limit);
249 static void EDIT_EM_SetMargins(EDITSTATE *es, INT action, WORD left, WORD right, BOOL repaint);
250 static void EDIT_EM_SetPasswordChar(EDITSTATE *es, WCHAR c);
251 static void EDIT_EM_SetSel(EDITSTATE *es, UINT start, UINT end, BOOL after_wrap);
252 static BOOL EDIT_EM_SetTabStops(EDITSTATE *es, INT count, const INT *tabs);
253 static BOOL EDIT_EM_SetTabStops16(EDITSTATE *es, INT count, const INT16 *tabs);
254 static void EDIT_EM_SetWordBreakProc(EDITSTATE *es, void *wbp);
255 static void EDIT_EM_SetWordBreakProc16(EDITSTATE *es, EDITWORDBREAKPROC16 wbp);
256 static BOOL EDIT_EM_Undo(EDITSTATE *es);
257 /*
258 * WM_XXX message handlers
259 */
260 static LRESULT EDIT_WM_Char(EDITSTATE *es, WCHAR c);
261 static void EDIT_WM_Command(EDITSTATE *es, INT code, INT id, HWND conrtol);
262 static void EDIT_WM_ContextMenu(EDITSTATE *es, INT x, INT y);
263 static void EDIT_WM_Copy(EDITSTATE *es);
264 static LRESULT EDIT_WM_Create(EDITSTATE *es, LPCWSTR name);
265 static LRESULT EDIT_WM_Destroy(EDITSTATE *es);
266 static INT EDIT_WM_GetText(const EDITSTATE *es, INT count, LPWSTR dst, BOOL unicode);
267 static LRESULT EDIT_WM_HScroll(EDITSTATE *es, INT action, INT pos);
268 static LRESULT EDIT_WM_KeyDown(EDITSTATE *es, INT key);
269 static LRESULT EDIT_WM_KillFocus(EDITSTATE *es);
270 static LRESULT EDIT_WM_LButtonDblClk(EDITSTATE *es);
271 static LRESULT EDIT_WM_LButtonDown(EDITSTATE *es, DWORD keys, INT x, INT y);
272 static LRESULT EDIT_WM_LButtonUp(EDITSTATE *es);
273 static LRESULT EDIT_WM_MButtonDown(EDITSTATE *es);
274 static LRESULT EDIT_WM_MouseMove(EDITSTATE *es, INT x, INT y);
275 static LRESULT EDIT_WM_NCCreate(HWND hwnd, LPCREATESTRUCTW lpcs, BOOL unicode);
276 static void EDIT_WM_Paint(EDITSTATE *es, HDC hdc);
277 static void EDIT_WM_Paste(EDITSTATE *es);
278 static void EDIT_WM_SetFocus(EDITSTATE *es);
279 static void EDIT_WM_SetFont(EDITSTATE *es, HFONT font, BOOL redraw);
280 static void EDIT_WM_SetText(EDITSTATE *es, LPCWSTR text, BOOL unicode);
281 static void EDIT_WM_Size(EDITSTATE *es, UINT action, INT width, INT height);
282 static LRESULT EDIT_WM_StyleChanged(EDITSTATE *es, WPARAM which, const STYLESTRUCT *style);
283 static LRESULT EDIT_WM_SysKeyDown(EDITSTATE *es, INT key, DWORD key_data);
284 static void EDIT_WM_Timer(EDITSTATE *es);
285 static LRESULT EDIT_WM_VScroll(EDITSTATE *es, INT action, INT pos);
286 static void EDIT_UpdateText(EDITSTATE *es, const RECT *rc, BOOL bErase);
287 static void EDIT_UpdateTextRegion(EDITSTATE *es, HRGN hrgn, BOOL bErase);
288 static void EDIT_ImeComposition(HWND hwnd, LPARAM CompFlag, EDITSTATE *es);
289
290 LRESULT WINAPI EditWndProcA(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
291 LRESULT WINAPI EditWndProcW(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
292
293 /*********************************************************************
294 * edit class descriptor
295 */
296 static const WCHAR editW[] = {'E','d','i','t',0};
297 const struct builtin_class_descr EDIT_builtin_class =
298 {
299 editW, /* name */
300 CS_DBLCLKS | CS_PARENTDC, /* style */
301 EditWndProcA, /* procA */
302 EditWndProcW, /* procW */
303 sizeof(EDITSTATE *), /* extra */
304 IDC_IBEAM, /* cursor */
305 0 /* brush */
306 };
307
308
309 /*********************************************************************
310 *
311 * EM_CANUNDO
312 *
313 */
314 static inline BOOL EDIT_EM_CanUndo(const EDITSTATE *es)
315 {
316 return (es->undo_insert_count || strlenW(es->undo_text));
317 }
318
319
320 /*********************************************************************
321 *
322 * EM_EMPTYUNDOBUFFER
323 *
324 */
325 static inline void EDIT_EM_EmptyUndoBuffer(EDITSTATE *es)
326 {
327 es->undo_insert_count = 0;
328 *es->undo_text = '\0';
329 }
330
331
332 /*********************************************************************
333 *
334 * WM_CLEAR
335 *
336 */
337 static inline void EDIT_WM_Clear(EDITSTATE *es)
338 {
339 static const WCHAR empty_stringW[] = {0};
340
341 /* Protect read-only edit control from modification */
342 if(es->style & ES_READONLY)
343 return;
344
345 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
346 }
347
348
349 /*********************************************************************
350 *
351 * WM_CUT
352 *
353 */
354 static inline void EDIT_WM_Cut(EDITSTATE *es)
355 {
356 EDIT_WM_Copy(es);
357 EDIT_WM_Clear(es);
358 }
359
360
361 /**********************************************************************
362 * get_app_version
363 *
364 * Returns the window version in case Wine emulates a later version
365 * of windows than the application expects.
366 *
367 * In a number of cases when windows runs an application that was
368 * designed for an earlier windows version, windows reverts
369 * to "old" behaviour of that earlier version.
370 *
371 * An example is a disabled edit control that needs to be painted.
372 * Old style behaviour is to send a WM_CTLCOLOREDIT message. This was
373 * changed in Win95, NT4.0 by a WM_CTLCOLORSTATIC message _only_ for
374 * applications with an expected version 0f 4.0 or higher.
375 *
376 */
377 static DWORD get_app_version(void)
378 {
379 static DWORD version;
380 if (!version)
381 {
382 DWORD dwEmulatedVersion;
383 OSVERSIONINFOW info;
384 DWORD dwProcVersion = GetProcessVersion(0);
385
386 info.dwOSVersionInfoSize = sizeof(OSVERSIONINFOW);
387 GetVersionExW( &info );
388 dwEmulatedVersion = MAKELONG( info.dwMinorVersion, info.dwMajorVersion );
389 /* FIXME: this may not be 100% correct; see discussion on the
390 * wine developer list in Nov 1999 */
391 version = dwProcVersion < dwEmulatedVersion ? dwProcVersion : dwEmulatedVersion;
392 }
393 return version;
394 }
395
396 static inline UINT get_text_length(EDITSTATE *es)
397 {
398 if(es->text_length == (UINT)-1)
399 es->text_length = strlenW(es->text);
400 return es->text_length;
401 }
402
403 static inline void text_buffer_changed(EDITSTATE *es)
404 {
405 es->text_length = (UINT)-1;
406 }
407
408 static HBRUSH EDIT_NotifyCtlColor(EDITSTATE *es, HDC hdc)
409 {
410 HBRUSH hbrush;
411 UINT msg;
412
413 if ( get_app_version() >= 0x40000 && (!es->bEnableState || (es->style & ES_READONLY)))
414 msg = WM_CTLCOLORSTATIC;
415 else
416 msg = WM_CTLCOLOREDIT;
417
418 /* why do we notify to es->hwndParent, and we send this one to GetParent()? */
419 hbrush = (HBRUSH)SendMessageW(GetParent(es->hwndSelf), msg, (WPARAM)hdc, (LPARAM)es->hwndSelf);
420 if (!hbrush)
421 hbrush = (HBRUSH)DefWindowProcW(GetParent(es->hwndSelf), msg, (WPARAM)hdc, (LPARAM)es->hwndSelf);
422 return hbrush;
423 }
424
425 static inline LRESULT DefWindowProcT(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam, BOOL unicode)
426 {
427 if(unicode)
428 return DefWindowProcW(hwnd, msg, wParam, lParam);
429 else
430 return DefWindowProcA(hwnd, msg, wParam, lParam);
431 }
432
433 /*********************************************************************
434 *
435 * EditWndProc_common
436 *
437 * The messages are in the order of the actual integer values
438 * (which can be found in include/windows.h)
439 * Wherever possible the 16 bit versions are converted to
440 * the 32 bit ones, so that we can 'fall through' to the
441 * helper functions. These are mostly 32 bit (with a few
442 * exceptions, clearly indicated by a '16' extension to their
443 * names).
444 *
445 */
446 static LRESULT WINAPI EditWndProc_common( HWND hwnd, UINT msg,
447 WPARAM wParam, LPARAM lParam, BOOL unicode )
448 {
449 EDITSTATE *es = (EDITSTATE *)GetWindowLongPtrW( hwnd, 0 );
450 LRESULT result = 0;
451
452 TRACE("hwnd=%p msg=%x (%s) wparam=%lx lparam=%lx\n", hwnd, msg, SPY_GetMsgName(msg, hwnd), wParam, lParam);
453
454 if (!es && msg != WM_NCCREATE)
455 return DefWindowProcT(hwnd, msg, wParam, lParam, unicode);
456
457 if (es && (msg != WM_DESTROY)) EDIT_LockBuffer(es);
458
459 switch (msg) {
460 case EM_GETSEL16:
461 wParam = 0;
462 lParam = 0;
463 /* fall through */
464 case EM_GETSEL:
465 result = EDIT_EM_GetSel(es, (PUINT)wParam, (PUINT)lParam);
466 break;
467
468 case EM_SETSEL16:
469 if ((short)LOWORD(lParam) == -1)
470 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
471 else
472 EDIT_EM_SetSel(es, LOWORD(lParam), HIWORD(lParam), FALSE);
473 if (!wParam)
474 EDIT_EM_ScrollCaret(es);
475 result = 1;
476 break;
477 case EM_SETSEL:
478 EDIT_EM_SetSel(es, wParam, lParam, FALSE);
479 EDIT_EM_ScrollCaret(es);
480 result = 1;
481 break;
482
483 case EM_GETRECT16:
484 if (lParam)
485 {
486 RECT16 *r16 = MapSL(lParam);
487 r16->left = es->format_rect.left;
488 r16->top = es->format_rect.top;
489 r16->right = es->format_rect.right;
490 r16->bottom = es->format_rect.bottom;
491 }
492 break;
493 case EM_GETRECT:
494 if (lParam)
495 CopyRect((LPRECT)lParam, &es->format_rect);
496 break;
497
498 case EM_SETRECT16:
499 if ((es->style & ES_MULTILINE) && lParam) {
500 RECT rc;
501 RECT16 *r16 = MapSL(lParam);
502 rc.left = r16->left;
503 rc.top = r16->top;
504 rc.right = r16->right;
505 rc.bottom = r16->bottom;
506 EDIT_SetRectNP(es, &rc);
507 EDIT_UpdateText(es, NULL, TRUE);
508 }
509 break;
510 case EM_SETRECT:
511 if ((es->style & ES_MULTILINE) && lParam) {
512 EDIT_SetRectNP(es, (LPRECT)lParam);
513 EDIT_UpdateText(es, NULL, TRUE);
514 }
515 break;
516
517 case EM_SETRECTNP16:
518 if ((es->style & ES_MULTILINE) && lParam) {
519 RECT rc;
520 RECT16 *r16 = MapSL(lParam);
521 rc.left = r16->left;
522 rc.top = r16->top;
523 rc.right = r16->right;
524 rc.bottom = r16->bottom;
525 EDIT_SetRectNP(es, &rc);
526 }
527 break;
528 case EM_SETRECTNP:
529 if ((es->style & ES_MULTILINE) && lParam)
530 EDIT_SetRectNP(es, (LPRECT)lParam);
531 break;
532
533 case EM_SCROLL16:
534 case EM_SCROLL:
535 result = EDIT_EM_Scroll(es, (INT)wParam);
536 break;
537
538 case EM_LINESCROLL16:
539 wParam = (WPARAM)(INT)(SHORT)HIWORD(lParam);
540 lParam = (LPARAM)(INT)(SHORT)LOWORD(lParam);
541 /* fall through */
542 case EM_LINESCROLL:
543 result = (LRESULT)EDIT_EM_LineScroll(es, (INT)wParam, (INT)lParam);
544 break;
545
546 case EM_SCROLLCARET16:
547 case EM_SCROLLCARET:
548 EDIT_EM_ScrollCaret(es);
549 result = 1;
550 break;
551
552 case EM_GETMODIFY16:
553 case EM_GETMODIFY:
554 result = ((es->flags & EF_MODIFIED) != 0);
555 break;
556
557 case EM_SETMODIFY16:
558 case EM_SETMODIFY:
559 if (wParam)
560 es->flags |= EF_MODIFIED;
561 else
562 es->flags &= ~(EF_MODIFIED | EF_UPDATE); /* reset pending updates */
563 break;
564
565 case EM_GETLINECOUNT16:
566 case EM_GETLINECOUNT:
567 result = (es->style & ES_MULTILINE) ? es->line_count : 1;
568 break;
569
570 case EM_LINEINDEX16:
571 if ((INT16)wParam == -1)
572 wParam = (WPARAM)-1;
573 /* fall through */
574 case EM_LINEINDEX:
575 result = (LRESULT)EDIT_EM_LineIndex(es, (INT)wParam);
576 break;
577
578 case EM_SETHANDLE16:
579 EDIT_EM_SetHandle16(es, (HLOCAL16)wParam);
580 break;
581 case EM_SETHANDLE:
582 EDIT_EM_SetHandle(es, (HLOCAL)wParam);
583 break;
584
585 case EM_GETHANDLE16:
586 result = (LRESULT)EDIT_EM_GetHandle16(es);
587 break;
588 case EM_GETHANDLE:
589 result = (LRESULT)EDIT_EM_GetHandle(es);
590 break;
591
592 case EM_GETTHUMB16:
593 case EM_GETTHUMB:
594 result = EDIT_EM_GetThumb(es);
595 break;
596
597 /* these messages missing from specs */
598 case WM_USER+15:
599 case 0x00bf:
600 case WM_USER+16:
601 case 0x00c0:
602 case WM_USER+19:
603 case 0x00c3:
604 case WM_USER+26:
605 case 0x00ca:
606 FIXME("undocumented message 0x%x, please report\n", msg);
607 result = DefWindowProcW(hwnd, msg, wParam, lParam);
608 break;
609
610 case EM_LINELENGTH16:
611 case EM_LINELENGTH:
612 result = (LRESULT)EDIT_EM_LineLength(es, (INT)wParam);
613 break;
614
615 case EM_REPLACESEL16:
616 lParam = (LPARAM)MapSL(lParam);
617 unicode = FALSE; /* 16-bit message is always ascii */
618 /* fall through */
619 case EM_REPLACESEL:
620 {
621 LPWSTR textW;
622
623 if(unicode)
624 textW = (LPWSTR)lParam;
625 else
626 {
627 LPSTR textA = (LPSTR)lParam;
628 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
629 if((textW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
630 MultiByteToWideChar(CP_ACP, 0, textA, -1, textW, countW);
631 }
632
633 EDIT_EM_ReplaceSel(es, (BOOL)wParam, textW, TRUE, TRUE);
634 result = 1;
635
636 if(!unicode)
637 HeapFree(GetProcessHeap(), 0, textW);
638 break;
639 }
640
641 case EM_GETLINE16:
642 lParam = (LPARAM)MapSL(lParam);
643 unicode = FALSE; /* 16-bit message is always ascii */
644 /* fall through */
645 case EM_GETLINE:
646 result = (LRESULT)EDIT_EM_GetLine(es, (INT)wParam, (LPWSTR)lParam, unicode);
647 break;
648
649 case EM_LIMITTEXT16:
650 case EM_SETLIMITTEXT:
651 EDIT_EM_SetLimitText(es, wParam);
652 break;
653
654 case EM_CANUNDO16:
655 case EM_CANUNDO:
656 result = (LRESULT)EDIT_EM_CanUndo(es);
657 break;
658
659 case EM_UNDO16:
660 case EM_UNDO:
661 case WM_UNDO:
662 result = (LRESULT)EDIT_EM_Undo(es);
663 break;
664
665 case EM_FMTLINES16:
666 case EM_FMTLINES:
667 result = (LRESULT)EDIT_EM_FmtLines(es, (BOOL)wParam);
668 break;
669
670 case EM_LINEFROMCHAR16:
671 case EM_LINEFROMCHAR:
672 result = (LRESULT)EDIT_EM_LineFromChar(es, (INT)wParam);
673 break;
674
675 case EM_SETTABSTOPS16:
676 result = (LRESULT)EDIT_EM_SetTabStops16(es, (INT)wParam, MapSL(lParam));
677 break;
678 case EM_SETTABSTOPS:
679 result = (LRESULT)EDIT_EM_SetTabStops(es, (INT)wParam, (LPINT)lParam);
680 break;
681
682 case EM_SETPASSWORDCHAR16:
683 unicode = FALSE; /* 16-bit message is always ascii */
684 /* fall through */
685 case EM_SETPASSWORDCHAR:
686 {
687 WCHAR charW = 0;
688
689 if(unicode)
690 charW = (WCHAR)wParam;
691 else
692 {
693 CHAR charA = wParam;
694 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
695 }
696
697 EDIT_EM_SetPasswordChar(es, charW);
698 break;
699 }
700
701 case EM_EMPTYUNDOBUFFER16:
702 case EM_EMPTYUNDOBUFFER:
703 EDIT_EM_EmptyUndoBuffer(es);
704 break;
705
706 case EM_GETFIRSTVISIBLELINE16:
707 result = es->y_offset;
708 break;
709 case EM_GETFIRSTVISIBLELINE:
710 result = (es->style & ES_MULTILINE) ? es->y_offset : es->x_offset;
711 break;
712
713 case EM_SETREADONLY16:
714 case EM_SETREADONLY:
715 if (wParam) {
716 SetWindowLongW( hwnd, GWL_STYLE,
717 GetWindowLongW( hwnd, GWL_STYLE ) | ES_READONLY );
718 es->style |= ES_READONLY;
719 } else {
720 SetWindowLongW( hwnd, GWL_STYLE,
721 GetWindowLongW( hwnd, GWL_STYLE ) & ~ES_READONLY );
722 es->style &= ~ES_READONLY;
723 }
724 result = 1;
725 break;
726
727 case EM_SETWORDBREAKPROC16:
728 EDIT_EM_SetWordBreakProc16(es, (EDITWORDBREAKPROC16)lParam);
729 break;
730 case EM_SETWORDBREAKPROC:
731 EDIT_EM_SetWordBreakProc(es, (void *)lParam);
732 break;
733
734 case EM_GETWORDBREAKPROC16:
735 result = (LRESULT)es->word_break_proc16;
736 break;
737 case EM_GETWORDBREAKPROC:
738 result = (LRESULT)es->word_break_proc;
739 break;
740
741 case EM_GETPASSWORDCHAR16:
742 unicode = FALSE; /* 16-bit message is always ascii */
743 /* fall through */
744 case EM_GETPASSWORDCHAR:
745 {
746 if(unicode)
747 result = es->password_char;
748 else
749 {
750 WCHAR charW = es->password_char;
751 CHAR charA = 0;
752 WideCharToMultiByte(CP_ACP, 0, &charW, 1, &charA, 1, NULL, NULL);
753 result = charA;
754 }
755 break;
756 }
757
758 /* The following EM_xxx are new to win95 and don't exist for 16 bit */
759
760 case EM_SETMARGINS:
761 EDIT_EM_SetMargins(es, (INT)wParam, LOWORD(lParam), HIWORD(lParam), TRUE);
762 break;
763
764 case EM_GETMARGINS:
765 result = MAKELONG(es->left_margin, es->right_margin);
766 break;
767
768 case EM_GETLIMITTEXT:
769 result = es->buffer_limit;
770 break;
771
772 case EM_POSFROMCHAR:
773 if ((INT)wParam >= get_text_length(es)) result = -1;
774 else result = EDIT_EM_PosFromChar(es, (INT)wParam, FALSE);
775 break;
776
777 case EM_CHARFROMPOS:
778 result = EDIT_EM_CharFromPos(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
779 break;
780
781 /* End of the EM_ messages which were in numerical order; what order
782 * are these in? vaguely alphabetical?
783 */
784
785 case WM_NCCREATE:
786 result = EDIT_WM_NCCreate(hwnd, (LPCREATESTRUCTW)lParam, unicode);
787 break;
788
789 case WM_DESTROY:
790 result = EDIT_WM_Destroy(es);
791 es = NULL;
792 break;
793
794 case WM_GETDLGCODE:
795 result = DLGC_HASSETSEL | DLGC_WANTCHARS | DLGC_WANTARROWS;
796
797 if (es->style & ES_MULTILINE)
798 result |= DLGC_WANTALLKEYS;
799
800 if (lParam && (((LPMSG)lParam)->message == WM_KEYDOWN))
801 {
802 int vk = (int)((LPMSG)lParam)->wParam;
803
804 if (es->hwndListBox)
805 {
806 if (vk == VK_RETURN || vk == VK_ESCAPE)
807 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
808 result |= DLGC_WANTMESSAGE;
809 }
810 else
811 {
812 switch (vk)
813 {
814 case VK_ESCAPE:
815 SendMessageW(GetParent(hwnd), WM_CLOSE, 0, 0);
816 break;
817 default:
818 break;
819 }
820 }
821 }
822 break;
823
824 case WM_IME_CHAR:
825 if (!unicode)
826 {
827 WCHAR charW;
828 CHAR strng[2];
829
830 strng[0] = wParam >> 8;
831 strng[1] = wParam & 0xff;
832 if (strng[0]) MultiByteToWideChar(CP_ACP, 0, strng, 2, &charW, 1);
833 else MultiByteToWideChar(CP_ACP, 0, &strng[1], 1, &charW, 1);
834 result = EDIT_WM_Char(es, charW);
835 break;
836 }
837 /* fall through */
838 case WM_CHAR:
839 {
840 WCHAR charW;
841
842 if(unicode)
843 charW = wParam;
844 else
845 {
846 CHAR charA = wParam;
847 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
848 }
849
850 if (es->hwndListBox)
851 {
852 if (charW == VK_RETURN || charW == VK_ESCAPE)
853 {
854 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
855 SendMessageW(GetParent(hwnd), WM_KEYDOWN, charW, 0);
856 break;
857 }
858 }
859 result = EDIT_WM_Char(es, charW);
860 break;
861 }
862
863 case WM_CLEAR:
864 EDIT_WM_Clear(es);
865 break;
866
867 case WM_COMMAND:
868 EDIT_WM_Command(es, HIWORD(wParam), LOWORD(wParam), (HWND)lParam);
869 break;
870
871 case WM_CONTEXTMENU:
872 EDIT_WM_ContextMenu(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
873 break;
874
875 case WM_COPY:
876 EDIT_WM_Copy(es);
877 break;
878
879 case WM_CREATE:
880 if(unicode)
881 result = EDIT_WM_Create(es, ((LPCREATESTRUCTW)lParam)->lpszName);
882 else
883 {
884 LPCSTR nameA = ((LPCREATESTRUCTA)lParam)->lpszName;
885 LPWSTR nameW = NULL;
886 if(nameA)
887 {
888 INT countW = MultiByteToWideChar(CP_ACP, 0, nameA, -1, NULL, 0);
889 if((nameW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
890 MultiByteToWideChar(CP_ACP, 0, nameA, -1, nameW, countW);
891 }
892 result = EDIT_WM_Create(es, nameW);
893 HeapFree(GetProcessHeap(), 0, nameW);
894 }
895 break;
896
897 case WM_CUT:
898 EDIT_WM_Cut(es);
899 break;
900
901 case WM_ENABLE:
902 es->bEnableState = (BOOL) wParam;
903 EDIT_UpdateText(es, NULL, TRUE);
904 break;
905
906 case WM_ERASEBKGND:
907 /* we do the proper erase in EDIT_WM_Paint */
908 result = 1;
909 break;
910
911 case WM_GETFONT:
912 result = (LRESULT)es->font;
913 break;
914
915 case WM_GETTEXT:
916 result = (LRESULT)EDIT_WM_GetText(es, (INT)wParam, (LPWSTR)lParam, unicode);
917 break;
918
919 case WM_GETTEXTLENGTH:
920 if (unicode) result = get_text_length(es);
921 else result = WideCharToMultiByte( CP_ACP, 0, es->text, get_text_length(es),
922 NULL, 0, NULL, NULL );
923 break;
924
925 case WM_HSCROLL:
926 result = EDIT_WM_HScroll(es, LOWORD(wParam), (short)HIWORD(wParam));
927 break;
928
929 case WM_KEYDOWN:
930 result = EDIT_WM_KeyDown(es, (INT)wParam);
931 break;
932
933 case WM_KILLFOCUS:
934 result = EDIT_WM_KillFocus(es);
935 break;
936
937 case WM_LBUTTONDBLCLK:
938 result = EDIT_WM_LButtonDblClk(es);
939 break;
940
941 case WM_LBUTTONDOWN:
942 result = EDIT_WM_LButtonDown(es, wParam, (short)LOWORD(lParam), (short)HIWORD(lParam));
943 break;
944
945 case WM_LBUTTONUP:
946 result = EDIT_WM_LButtonUp(es);
947 break;
948
949 case WM_MBUTTONDOWN:
950 result = EDIT_WM_MButtonDown(es);
951 break;
952
953 case WM_MOUSEMOVE:
954 result = EDIT_WM_MouseMove(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
955 break;
956
957 case WM_PRINTCLIENT:
958 case WM_PAINT:
959 EDIT_WM_Paint(es, (HDC)wParam);
960 break;
961
962 case WM_PASTE:
963 EDIT_WM_Paste(es);
964 break;
965
966 case WM_SETFOCUS:
967 EDIT_WM_SetFocus(es);
968 break;
969
970 case WM_SETFONT:
971 EDIT_WM_SetFont(es, (HFONT)wParam, LOWORD(lParam) != 0);
972 break;
973
974 case WM_SETREDRAW:
975 /* FIXME: actually set an internal flag and behave accordingly */
976 break;
977
978 case WM_SETTEXT:
979 EDIT_WM_SetText(es, (LPCWSTR)lParam, unicode);
980 result = TRUE;
981 break;
982
983 case WM_SIZE:
984 EDIT_WM_Size(es, (UINT)wParam, LOWORD(lParam), HIWORD(lParam));
985 break;
986
987 case WM_STYLECHANGED:
988 result = EDIT_WM_StyleChanged(es, wParam, (const STYLESTRUCT *)lParam);
989 break;
990
991 case WM_STYLECHANGING:
992 result = 0; /* See EDIT_WM_StyleChanged */
993 break;
994
995 case WM_SYSKEYDOWN:
996 result = EDIT_WM_SysKeyDown(es, (INT)wParam, (DWORD)lParam);
997 break;
998
999 case WM_TIMER:
1000 EDIT_WM_Timer(es);
1001 break;
1002
1003 case WM_VSCROLL:
1004 result = EDIT_WM_VScroll(es, LOWORD(wParam), (short)HIWORD(wParam));
1005 break;
1006
1007 case WM_MOUSEWHEEL:
1008 {
1009 int gcWheelDelta = 0;
1010 UINT pulScrollLines = 3;
1011 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
1012
1013 if (wParam & (MK_SHIFT | MK_CONTROL)) {
1014 result = DefWindowProcW(hwnd, msg, wParam, lParam);
1015 break;
1016 }
1017 gcWheelDelta -= GET_WHEEL_DELTA_WPARAM(wParam);
1018 if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
1019 {
1020 int cLineScroll= (int) min((UINT) es->line_count, pulScrollLines);
1021 cLineScroll *= (gcWheelDelta / WHEEL_DELTA);
1022 result = EDIT_EM_LineScroll(es, 0, cLineScroll);
1023 }
1024 }
1025 break;
1026
1027
1028 /* IME messages to make the edit control IME aware */
1029 case WM_IME_SETCONTEXT:
1030 break;
1031
1032 case WM_IME_STARTCOMPOSITION:
1033 /*
1034 * FIXME in IME: This message is not always sent like it should be
1035 */
1036 if (es->selection_start != es->selection_end)
1037 {
1038 static const WCHAR empty_stringW[] = {0};
1039 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
1040 }
1041 es->composition_start = es->selection_end;
1042 es->composition_len = 0;
1043 break;
1044
1045 case WM_IME_COMPOSITION:
1046 {
1047 int caret_pos = es->selection_end;
1048 if (es->composition_len == 0)
1049 {
1050 if (es->selection_start != es->selection_end)
1051 {
1052 static const WCHAR empty_stringW[] = {0};
1053 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
1054 }
1055
1056 es->composition_start = es->selection_end;
1057 }
1058 EDIT_ImeComposition(hwnd,lParam,es);
1059 EDIT_SetCaretPos(es, caret_pos, es->flags & EF_AFTER_WRAP);
1060 break;
1061 }
1062
1063 case WM_IME_ENDCOMPOSITION:
1064 es->composition_len= 0;
1065 break;
1066
1067 case WM_IME_COMPOSITIONFULL:
1068 break;
1069
1070 case WM_IME_SELECT:
1071 break;
1072
1073 case WM_IME_CONTROL:
1074 break;
1075
1076 default:
1077 result = DefWindowProcT(hwnd, msg, wParam, lParam, unicode);
1078 break;
1079 }
1080
1081 if (es) EDIT_UnlockBuffer(es, FALSE);
1082
1083 TRACE("hwnd=%p msg=%x (%s) -- 0x%08lx\n", hwnd, msg, SPY_GetMsgName(msg, hwnd), result);
1084
1085 return result;
1086 }
1087
1088 /*********************************************************************
1089 *
1090 * EditWndProcW (USER32.@)
1091 */
1092 LRESULT WINAPI EditWndProcW(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
1093 {
1094 return EditWndProc_common(hWnd, uMsg, wParam, lParam, TRUE);
1095 }
1096
1097 /*********************************************************************
1098 *
1099 * EditWndProc (USER32.@)
1100 */
1101 LRESULT WINAPI EditWndProcA(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
1102 {
1103 return EditWndProc_common(hWnd, uMsg, wParam, lParam, FALSE);
1104 }
1105
1106 /*********************************************************************
1107 *
1108 * EDIT_BuildLineDefs_ML
1109 *
1110 * Build linked list of text lines.
1111 * Lines can end with '\0' (last line), a character (if it is wrapped),
1112 * a soft return '\r\r\n' or a hard return '\r\n'
1113 *
1114 */
1115 static void EDIT_BuildLineDefs_ML(EDITSTATE *es, INT istart, INT iend, INT delta, HRGN hrgn)
1116 {
1117 HDC dc;
1118 HFONT old_font = 0;
1119 LPWSTR current_position, cp;
1120 INT fw;
1121 LINEDEF *current_line;
1122 LINEDEF *previous_line;
1123 LINEDEF *start_line;
1124 INT line_index = 0, nstart_line = 0, nstart_index = 0;
1125 INT line_count = es->line_count;
1126 INT orig_net_length;
1127 RECT rc;
1128
1129 if (istart == iend && delta == 0)
1130 return;
1131
1132 dc = GetDC(es->hwndSelf);
1133 if (es->font)
1134 old_font = SelectObject(dc, es->font);
1135
1136 previous_line = NULL;
1137 current_line = es->first_line_def;
1138
1139 /* Find starting line. istart must lie inside an existing line or
1140 * at the end of buffer */
1141 do {
1142 if (istart < current_line->index + current_line->length ||
1143 current_line->ending == END_0)
1144 break;
1145
1146 previous_line = current_line;
1147 current_line = current_line->next;
1148 line_index++;
1149 } while (current_line);
1150
1151 if (!current_line) /* Error occurred start is not inside previous buffer */
1152 {
1153 FIXME(" modification occurred outside buffer\n");
1154 ReleaseDC(es->hwndSelf, dc);
1155 return;
1156 }
1157
1158 /* Remember start of modifications in order to calculate update region */
1159 nstart_line = line_index;
1160 nstart_index = current_line->index;
1161
1162 /* We must start to reformat from the previous line since the modifications
1163 * may have caused the line to wrap upwards. */
1164 if (!(es->style & ES_AUTOHSCROLL) && line_index > 0)
1165 {
1166 line_index--;
1167 current_line = previous_line;
1168 }
1169 start_line = current_line;
1170
1171 fw = es->format_rect.right - es->format_rect.left;
1172 current_position = es->text + current_line->index;
1173 do {
1174 if (current_line != start_line)
1175 {
1176 if (!current_line || current_line->index + delta > current_position - es->text)
1177 {
1178 /* The buffer has been expanded, create a new line and
1179 insert it into the link list */
1180 LINEDEF *new_line = HeapAlloc(GetProcessHeap(), 0, sizeof(LINEDEF));
1181 new_line->next = previous_line->next;
1182 previous_line->next = new_line;
1183 current_line = new_line;
1184 es->line_count++;
1185 }
1186 else if (current_line->index + delta < current_position - es->text)
1187 {
1188 /* The previous line merged with this line so we delete this extra entry */
1189 previous_line->next = current_line->next;
1190 HeapFree(GetProcessHeap(), 0, current_line);
1191 current_line = previous_line->next;
1192 es->line_count--;
1193 continue;
1194 }
1195 else /* current_line->index + delta == current_position */
1196 {
1197 if (current_position - es->text > iend)
1198 break; /* We reached end of line modifications */
1199 /* else recalulate this line */
1200 }
1201 }
1202
1203 current_line->index = current_position - es->text;
1204 orig_net_length = current_line->net_length;
1205
1206 /* Find end of line */
1207 cp = current_position;
1208 while (*cp) {
1209 if (*cp == '\n') break;
1210 if ((*cp == '\r') && (*(cp + 1) == '\n'))
1211 break;
1212 cp++;
1213 }
1214
1215 /* Mark type of line termination */
1216 if (!(*cp)) {
1217 current_line->ending = END_0;
1218 current_line->net_length = strlenW(current_position);
1219 } else if ((cp > current_position) && (*(cp - 1) == '\r')) {
1220 current_line->ending = END_SOFT;
1221 current_line->net_length = cp - current_position - 1;
1222 } else if (*cp == '\n') {
1223 current_line->ending = END_RICH;
1224 current_line->net_length = cp - current_position;
1225 } else {
1226 current_line->ending = END_HARD;
1227 current_line->net_length = cp - current_position;
1228 }
1229
1230 /* Calculate line width */
1231 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1232 current_position, current_line->net_length,
1233 es->tabs_count, es->tabs));
1234
1235 /* FIXME: check here for lines that are too wide even in AUTOHSCROLL (> 32767 ???) */
1236 if (!(es->style & ES_AUTOHSCROLL)) {
1237 if (current_line->width > fw) {
1238 INT next = 0;
1239 INT prev;
1240 do {
1241 prev = next;
1242 next = EDIT_CallWordBreakProc(es, current_position - es->text,
1243 prev + 1, current_line->net_length, WB_RIGHT);
1244 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1245 current_position, next, es->tabs_count, es->tabs));
1246 } while (current_line->width <= fw);
1247 if (!prev) { /* Didn't find a line break so force a break */
1248 next = 0;
1249 do {
1250 prev = next;
1251 next++;
1252 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1253 current_position, next, es->tabs_count, es->tabs));
1254 } while (current_line->width <= fw);
1255 if (!prev)
1256 prev = 1;
1257 }
1258
1259 /* If the first line we are calculating, wrapped before istart, we must
1260 * adjust istart in order for this to be reflected in the update region. */
1261 if (current_line->index == nstart_index && istart > current_line->index + prev)
1262 istart = current_line->index + prev;
1263 /* else if we are updating the previous line before the first line we
1264 * are re-calculating and it expanded */
1265 else if (current_line == start_line &&
1266 current_line->index != nstart_index && orig_net_length < prev)
1267 {
1268 /* Line expanded due to an upwards line wrap so we must partially include
1269 * previous line in update region */
1270 nstart_line = line_index;
1271 nstart_index = current_line->index;
1272 istart = current_line->index + orig_net_length;
1273 }
1274
1275 current_line->net_length = prev;
1276 current_line->ending = END_WRAP;
1277 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc, current_position,
1278 current_line->net_length, es->tabs_count, es->tabs));
1279 }
1280 else if (current_line == start_line &&
1281 current_line->index != nstart_index &&
1282 orig_net_length < current_line->net_length) {
1283 /* The previous line expanded but it's still not as wide as the client rect */
1284 /* The expansion is due to an upwards line wrap so we must partially include
1285 it in the update region */
1286 nstart_line = line_index;
1287 nstart_index = current_line->index;
1288 istart = current_line->index + orig_net_length;
1289 }
1290 }
1291
1292
1293 /* Adjust length to include line termination */
1294 switch (current_line->ending) {
1295 case END_SOFT:
1296 current_line->length = current_line->net_length + 3;
1297 break;
1298 case END_RICH:
1299 current_line->length = current_line->net_length + 1;
1300 break;
1301 case END_HARD:
1302 current_line->length = current_line->net_length + 2;
1303 break;
1304 case END_WRAP:
1305 case END_0:
1306 current_line->length = current_line->net_length;
1307 break;
1308 }
1309 es->text_width = max(es->text_width, current_line->width);
1310 current_position += current_line->length;
1311 previous_line = current_line;
1312 current_line = current_line->next;
1313 line_index++;
1314 } while (previous_line->ending != END_0);
1315
1316 /* Finish adjusting line indexes by delta or remove hanging lines */
1317 if (previous_line->ending == END_0)
1318 {
1319 LINEDEF *pnext = NULL;
1320
1321 previous_line->next = NULL;
1322 while (current_line)
1323 {
1324 pnext = current_line->next;
1325 HeapFree(GetProcessHeap(), 0, current_line);
1326 current_line = pnext;
1327 es->line_count--;
1328 }
1329 }
1330 else if (delta != 0)
1331 {
1332 while (current_line)
1333 {
1334 current_line->index += delta;
1335 current_line = current_line->next;
1336 }
1337 }
1338
1339 /* Calculate rest of modification rectangle */
1340 if (hrgn)
1341 {
1342 HRGN tmphrgn;
1343 /*
1344 * We calculate two rectangles. One for the first line which may have
1345 * an indent with respect to the format rect. The other is a format-width
1346 * rectangle that spans the rest of the lines that changed or moved.
1347 */
1348 rc.top = es->format_rect.top + nstart_line * es->line_height -
1349 (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
1350 rc.bottom = rc.top + es->line_height;
1351 if ((es->style & ES_CENTER) || (es->style & ES_RIGHT))
1352 rc.left = es->format_rect.left;
1353 else
1354 rc.left = es->format_rect.left + (INT)LOWORD(GetTabbedTextExtentW(dc,
1355 es->text + nstart_index, istart - nstart_index,
1356 es->tabs_count, es->tabs)) - es->x_offset; /* Adjust for horz scroll */
1357 rc.right = es->format_rect.right;
1358 SetRectRgn(hrgn, rc.left, rc.top, rc.right, rc.bottom);
1359
1360 rc.top = rc.bottom;
1361 rc.left = es->format_rect.left;
1362 rc.right = es->format_rect.right;
1363 /*
1364 * If lines were added or removed we must re-paint the remainder of the
1365 * lines since the remaining lines were either shifted up or down.
1366 */
1367 if (line_count < es->line_count) /* We added lines */
1368 rc.bottom = es->line_count * es->line_height;
1369 else if (line_count > es->line_count) /* We removed lines */
1370 rc.bottom = line_count * es->line_height;
1371 else
1372 rc.bottom = line_index * es->line_height;
1373 rc.bottom += es->format_rect.top;
1374 rc.bottom -= (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
1375 tmphrgn = CreateRectRgn(rc.left, rc.top, rc.right, rc.bottom);
1376 CombineRgn(hrgn, hrgn, tmphrgn, RGN_OR);
1377 DeleteObject(tmphrgn);
1378 }
1379
1380 if (es->font)
1381 SelectObject(dc, old_font);
1382
1383 ReleaseDC(es->hwndSelf, dc);
1384 }
1385
1386 /*********************************************************************
1387 *
1388 * EDIT_CalcLineWidth_SL
1389 *
1390 */
1391 static void EDIT_CalcLineWidth_SL(EDITSTATE *es)
1392 {
1393 SIZE size;
1394 LPWSTR text;
1395 HDC dc;
1396 HFONT old_font = 0;
1397
1398 text = EDIT_GetPasswordPointer_SL(es);
1399
1400 dc = GetDC(es->hwndSelf);
1401 if (es->font)
1402 old_font = SelectObject(dc, es->font);
1403
1404 GetTextExtentPoint32W(dc, text, strlenW(text), &size);
1405
1406 if (es->font)
1407 SelectObject(dc, old_font);
1408 ReleaseDC(es->hwndSelf, dc);
1409
1410 if (es->style & ES_PASSWORD)
1411 HeapFree(GetProcessHeap(), 0, text);
1412
1413 es->text_width = size.cx;
1414 }
1415
1416 /*********************************************************************
1417 *
1418 * EDIT_CallWordBreakProc
1419 *
1420 * Call appropriate WordBreakProc (internal or external).
1421 *
1422 * Note: The "start" argument should always be an index referring
1423 * to es->text. The actual wordbreak proc might be
1424 * 16 bit, so we can't always pass any 32 bit LPSTR.
1425 * Hence we assume that es->text is the buffer that holds
1426 * the string under examination (we can decide this for ourselves).
1427 *
1428 */
1429 static INT EDIT_CallWordBreakProc(EDITSTATE *es, INT start, INT index, INT count, INT action)
1430 {
1431 INT ret;
1432
1433 if (es->word_break_proc16) {
1434 HGLOBAL16 hglob16;
1435 SEGPTR segptr;
1436 INT countA;
1437 WORD args[5];
1438 DWORD result;
1439
1440 countA = WideCharToMultiByte(CP_ACP, 0, es->text + start, count, NULL, 0, NULL, NULL);
1441 hglob16 = GlobalAlloc16(GMEM_MOVEABLE | GMEM_ZEROINIT, countA);
1442 segptr = WOWGlobalLock16(hglob16);
1443 WideCharToMultiByte(CP_ACP, 0, es->text + start, count, MapSL(segptr), countA, NULL, NULL);
1444 args[4] = SELECTOROF(segptr);
1445 args[3] = OFFSETOF(segptr);
1446 args[2] = index;
1447 args[1] = countA;
1448 args[0] = action;
1449 WOWCallback16Ex((DWORD)es->word_break_proc16, WCB16_PASCAL, sizeof(args), args, &result);
1450 ret = LOWORD(result);
1451 GlobalUnlock16(hglob16);
1452 GlobalFree16(hglob16);
1453 }
1454 else if (es->word_break_proc)
1455 {
1456 if(es->is_unicode)
1457 {
1458 EDITWORDBREAKPROCW wbpW = (EDITWORDBREAKPROCW)es->word_break_proc;
1459
1460 TRACE_(relay)("(UNICODE wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
1461 es->word_break_proc, debugstr_wn(es->text + start, count), index, count, action);
1462 ret = wbpW(es->text + start, index, count, action);
1463 }
1464 else
1465 {
1466 EDITWORDBREAKPROCA wbpA = (EDITWORDBREAKPROCA)es->word_break_proc;
1467 INT countA;
1468 CHAR *textA;
1469
1470 countA = WideCharToMultiByte(CP_ACP, 0, es->text + start, count, NULL, 0, NULL, NULL);
1471 textA = HeapAlloc(GetProcessHeap(), 0, countA);
1472 WideCharToMultiByte(CP_ACP, 0, es->text + start, count, textA, countA, NULL, NULL);
1473 TRACE_(relay)("(ANSI wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
1474 es->word_break_proc, debugstr_an(textA, countA), index, countA, action);
1475 ret = wbpA(textA, index, countA, action);
1476 HeapFree(GetProcessHeap(), 0, textA);
1477 }
1478 }
1479 else
1480 ret = EDIT_WordBreakProc(es->text + start, index, count, action);
1481
1482 return ret;
1483 }
1484
1485
1486 /*********************************************************************
1487 *
1488 * EDIT_CharFromPos
1489 *
1490 * Beware: This is not the function called on EM_CHARFROMPOS
1491 * The position _can_ be outside the formatting / client
1492 * rectangle
1493 * The return value is only the character index
1494 *
1495 */
1496 static INT EDIT_CharFromPos(EDITSTATE *es, INT x, INT y, LPBOOL after_wrap)
1497 {
1498 INT index;
1499 HDC dc;
1500 HFONT old_font = 0;
1501 INT x_high = 0, x_low = 0;
1502
1503 if (es->style & ES_MULTILINE) {
1504 INT line = (y - es->format_rect.top) / es->line_height + es->y_offset;
1505 INT line_index = 0;
1506 LINEDEF *line_def = es->first_line_def;
1507 INT low, high;
1508 while ((line > 0) && line_def->next) {
1509 line_index += line_def->length;
1510 line_def = line_def->next;
1511 line--;
1512 }
1513 x += es->x_offset - es->format_rect.left;
1514 if (es->style & ES_RIGHT)
1515 x -= (es->format_rect.right - es->format_rect.left) - line_def->width;
1516 else if (es->style & ES_CENTER)
1517 x -= ((es->format_rect.right - es->format_rect.left) - line_def->width) / 2;
1518 if (x >= line_def->width) {
1519 if (after_wrap)
1520 *after_wrap = (line_def->ending == END_WRAP);
1521 return line_index + line_def->net_length;
1522 }
1523 if (x <= 0) {
1524 if (after_wrap)
1525 *after_wrap = FALSE;
1526 return line_index;
1527 }
1528 dc = GetDC(es->hwndSelf);
1529 if (es->font)
1530 old_font = SelectObject(dc, es->font);
1531 low = line_index;
1532 high = line_index + line_def->net_length + 1;
1533 while (low < high - 1)
1534 {
1535 INT mid = (low + high) / 2;
1536 INT x_now = LOWORD(GetTabbedTextExtentW(dc, es->text + line_index, mid - line_index, es->tabs_count, es->tabs));
1537 if (x_now > x) {
1538 high = mid;
1539 x_high = x_now;
1540 } else {
1541 low = mid;
1542 x_low = x_now;
1543 }
1544 }
1545 if (abs(x_high - x) + 1 <= abs(x_low - x))
1546 index = high;
1547 else
1548 index = low;
1549
1550 if (after_wrap)
1551 *after_wrap = ((index == line_index + line_def->net_length) &&
1552 (line_def->ending == END_WRAP));
1553 } else {
1554 LPWSTR text;
1555 SIZE size;
1556 if (after_wrap)
1557 *after_wrap = FALSE;
1558 x -= es->format_rect.left;
1559 if (!x)
1560 return es->x_offset;
1561
1562 if (!es->x_offset)
1563 {
1564 INT indent = (es->format_rect.right - es->format_rect.left) - es->text_width;
1565 if (es->style & ES_RIGHT)
1566 x -= indent;
1567 else if (es->style & ES_CENTER)
1568 x -= indent / 2;
1569 }
1570
1571 text = EDIT_GetPasswordPointer_SL(es);
1572 dc = GetDC(es->hwndSelf);
1573 if (es->font)
1574 old_font = SelectObject(dc, es->font);
1575 if (x < 0)
1576 {
1577 INT low = 0;
1578 INT high = es->x_offset;
1579 while (low < high - 1)
1580 {
1581 INT mid = (low + high) / 2;
1582 GetTextExtentPoint32W( dc, text + mid,
1583 es->x_offset - mid, &size );
1584 if (size.cx > -x) {
1585 low = mid;
1586 x_low = size.cx;
1587 } else {
1588 high = mid;
1589 x_high = size.cx;
1590 }
1591 }
1592 if (abs(x_high + x) <= abs(x_low + x) + 1)
1593 index = high;
1594 else
1595 index = low;
1596 }
1597 else
1598 {
1599 INT low = es->x_offset;
1600 INT high = get_text_length(es) + 1;
1601 while (low < high - 1)
1602 {
1603 INT mid = (low + high) / 2;
1604 GetTextExtentPoint32W( dc, text + es->x_offset,
1605 mid - es->x_offset, &size );
1606 if (size.cx > x) {
1607 high = mid;
1608 x_high = size.cx;
1609 } else {
1610 low = mid;
1611 x_low = size.cx;
1612 }
1613 }
1614 if (abs(x_high - x) <= abs(x_low - x) + 1)
1615 index = high;
1616 else
1617 index = low;
1618 }
1619 if (es->style & ES_PASSWORD)
1620 HeapFree(GetProcessHeap(), 0, text);
1621 }
1622 if (es->font)
1623 SelectObject(dc, old_font);
1624 ReleaseDC(es->hwndSelf, dc);
1625 return index;
1626 }
1627
1628
1629 /*********************************************************************
1630 *
1631 * EDIT_ConfinePoint
1632 *
1633 * adjusts the point to be within the formatting rectangle
1634 * (so CharFromPos returns the nearest _visible_ character)
1635 *
1636 */
1637 static void EDIT_ConfinePoint(const EDITSTATE *es, LPINT x, LPINT y)
1638 {
1639 *x = min(max(*x, es->format_rect.left), es->format_rect.right - 1);
1640 *y = min(max(*y, es->format_rect.top), es->format_rect.bottom - 1);
1641 }
1642
1643
1644 /*********************************************************************
1645 *
1646 * EDIT_GetLineRect
1647 *
1648 * Calculates the bounding rectangle for a line from a starting
1649 * column to an ending column.
1650 *
1651 */
1652 static void EDIT_GetLineRect(EDITSTATE *es, INT line, INT scol, INT ecol, LPRECT rc)
1653 {
1654 INT line_index = EDIT_EM_LineIndex(es, line);
1655
1656 if (es->style & ES_MULTILINE)
1657 rc->top = es->format_rect.top + (line - es->y_offset) * es->line_height;
1658 else
1659 rc->top = es->format_rect.top;
1660 rc->bottom = rc->top + es->line_height;
1661 rc->left = (scol == 0) ? es->format_rect.left : (short)LOWORD(EDIT_EM_PosFromChar(es, line_index + scol, TRUE));
1662 rc->right = (ecol == -1) ? es->format_rect.right : (short)LOWORD(EDIT_EM_PosFromChar(es, line_index + ecol, TRUE));
1663 }
1664
1665
1666 /*********************************************************************
1667 *
1668 * EDIT_GetPasswordPointer_SL
1669 *
1670 * note: caller should free the (optionally) allocated buffer
1671 *
1672 */
1673 static LPWSTR EDIT_GetPasswordPointer_SL(EDITSTATE *es)
1674 {
1675 if (es->style & ES_PASSWORD) {
1676 INT len = get_text_length(es);
1677 LPWSTR text = HeapAlloc(GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR));
1678 text[len] = '\0';
1679 while(len) text[--len] = es->password_char;
1680 return text;
1681 } else
1682 return es->text;
1683 }
1684
1685
1686 /*********************************************************************
1687 *
1688 * EDIT_LockBuffer
1689 *
1690 * This acts as a LocalLock16(), but it locks only once. This way
1691 * you can call it whenever you like, without unlocking.
1692 *
1693 * Initially the edit control allocates a HLOCAL32 buffer
1694 * (32 bit linear memory handler). However, 16 bit application
1695 * might send an EM_GETHANDLE message and expect a HLOCAL16 (16 bit SEG:OFF
1696 * handler). From that moment on we have to keep using this 16 bit memory
1697 * handler, because it is supposed to be valid at all times after EM_GETHANDLE.
1698 * What we do is create a HLOCAL16 buffer, copy the text, and do pointer
1699 * conversion.
1700 *
1701 */
1702 static void EDIT_LockBuffer(EDITSTATE *es)
1703 {
1704 STACK16FRAME* stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
1705 HINSTANCE16 hInstance = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
1706
1707 if (!es->text) {
1708 CHAR *textA = NULL;
1709 UINT countA = 0;
1710 BOOL _16bit = FALSE;
1711
1712 if(es->hloc32W)
1713 {
1714 if(es->hloc32A)
1715 {
1716 TRACE("Synchronizing with 32-bit ANSI buffer\n");
1717 textA = LocalLock(es->hloc32A);
1718 countA = strlen(textA) + 1;
1719 }
1720 else if(es->hloc16)
1721 {
1722 HANDLE16 oldDS = stack16->ds;
1723 TRACE("Synchronizing with 16-bit ANSI buffer\n");
1724 stack16->ds = hInstance;
1725 textA = MapSL(LocalLock16(es->hloc16));
1726 stack16->ds = oldDS;
1727 countA = strlen(textA) + 1;
1728 _16bit = TRUE;
1729 }
1730 }
1731 else {
1732 ERR("no buffer ... please report\n");
1733 return;
1734 }
1735
1736 if(textA)
1737 {
1738 HLOCAL hloc32W_new;
1739 UINT countW_new = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
1740 TRACE("%d bytes translated to %d WCHARs\n", countA, countW_new);
1741 if(countW_new > es->buffer_size + 1)
1742 {
1743 UINT alloc_size = ROUND_TO_GROW(countW_new * sizeof(WCHAR));
1744 TRACE("Resizing 32-bit UNICODE buffer from %d+1 to %d WCHARs\n", es->buffer_size, countW_new);
1745 hloc32W_new = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
1746 if(hloc32W_new)
1747 {
1748 es->hloc32W = hloc32W_new;
1749 es->buffer_size = LocalSize(hloc32W_new)/sizeof(WCHAR) - 1;
1750 TRACE("Real new size %d+1 WCHARs\n", es->buffer_size);
1751 }
1752 else
1753 WARN("FAILED! Will synchronize partially\n");
1754 }
1755 }
1756
1757 /*TRACE("Locking 32-bit UNICODE buffer\n");*/
1758 es->text = LocalLock(es->hloc32W);
1759
1760 if(textA)
1761 {
1762 MultiByteToWideChar(CP_ACP, 0, textA, countA, es->text, es->buffer_size + 1);
1763 if(_16bit)
1764 {
1765 HANDLE16 oldDS = stack16->ds;
1766 stack16->ds = hInstance;
1767 LocalUnlock16(es->hloc16);
1768 stack16->ds = oldDS;
1769 }
1770 else
1771 LocalUnlock(es->hloc32A);
1772 }
1773 }
1774 if(es->flags & EF_APP_HAS_HANDLE) text_buffer_changed(es);
1775 es->lock_count++;
1776 }
1777
1778
1779 /*********************************************************************
1780 *
1781 * EDIT_SL_InvalidateText
1782 *
1783 * Called from EDIT_InvalidateText().
1784 * Does the job for single-line controls only.
1785 *
1786 */
1787 static void EDIT_SL_InvalidateText(EDITSTATE *es, INT start, INT end)
1788 {
1789 RECT line_rect;
1790 RECT rc;
1791
1792 EDIT_GetLineRect(es, 0, start, end, &line_rect);
1793 if (IntersectRect(&rc, &line_rect, &es->format_rect))
1794 EDIT_UpdateText(es, &rc, TRUE);
1795 }
1796
1797
1798 /*********************************************************************
1799 *
1800 * EDIT_ML_InvalidateText
1801 *
1802 * Called from EDIT_InvalidateText().
1803 * Does the job for multi-line controls only.
1804 *
1805 */
1806 static void EDIT_ML_InvalidateText(EDITSTATE *es, INT start, INT end)
1807 {
1808 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
1809 INT sl = EDIT_EM_LineFromChar(es, start);
1810 INT el = EDIT_EM_LineFromChar(es, end);
1811 INT sc;
1812 INT ec;
1813 RECT rc1;
1814 RECT rcWnd;
1815 RECT rcLine;
1816 RECT rcUpdate;
1817 INT l;
1818
1819 if ((el < es->y_offset) || (sl > es->y_offset + vlc))
1820 return;
1821
1822 sc = start - EDIT_EM_LineIndex(es, sl);
1823 ec = end - EDIT_EM_LineIndex(es, el);
1824 if (sl < es->y_offset) {
1825 sl = es->y_offset;
1826 sc = 0;
1827 }
1828 if (el > es->y_offset + vlc) {
1829 el = es->y_offset + vlc;
1830 ec = EDIT_EM_LineLength(es, EDIT_EM_LineIndex(es, el));
1831 }
1832 GetClientRect(es->hwndSelf, &rc1);
1833 IntersectRect(&rcWnd, &rc1, &es->format_rect);
1834 if (sl == el) {
1835 EDIT_GetLineRect(es, sl, sc, ec, &rcLine);
1836 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1837 EDIT_UpdateText(es, &rcUpdate, TRUE);
1838 } else {
1839 EDIT_GetLineRect(es, sl, sc,
1840 EDIT_EM_LineLength(es,
1841 EDIT_EM_LineIndex(es, sl)),
1842 &rcLine);
1843 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1844 EDIT_UpdateText(es, &rcUpdate, TRUE);
1845 for (l = sl + 1 ; l < el ; l++) {
1846 EDIT_GetLineRect(es, l, 0,
1847 EDIT_EM_LineLength(es,
1848 EDIT_EM_LineIndex(es, l)),
1849 &rcLine);
1850 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1851 EDIT_UpdateText(es, &rcUpdate, TRUE);
1852 }
1853 EDIT_GetLineRect(es, el, 0, ec, &rcLine);
1854 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1855 EDIT_UpdateText(es, &rcUpdate, TRUE);
1856 }
1857 }
1858
1859
1860 /*********************************************************************
1861 *
1862 * EDIT_InvalidateText
1863 *
1864 * Invalidate the text from offset start up to, but not including,
1865 * offset end. Useful for (re)painting the selection.
1866 * Regions outside the linewidth are not invalidated.
1867 * end == -1 means end == TextLength.
1868 * start and end need not be ordered.
1869 *
1870 */
1871 static void EDIT_InvalidateText(EDITSTATE *es, INT start, INT end)
1872 {
1873 if (end == start)
1874 return;
1875
1876 if (end == -1)
1877 end = get_text_length(es);
1878
1879 if (end < start) {
1880 INT tmp = start;
1881 start = end;
1882 end = tmp;
1883 }
1884
1885 if (es->style & ES_MULTILINE)
1886 EDIT_ML_InvalidateText(es, start, end);
1887 else
1888 EDIT_SL_InvalidateText(es, start, end);
1889 }
1890
1891
1892 /*********************************************************************
1893 *
1894 * EDIT_MakeFit
1895 *
1896 * Try to fit size + 1 characters in the buffer.
1897 */
1898 static BOOL EDIT_MakeFit(EDITSTATE *es, UINT size)
1899 {
1900 HLOCAL hNew32W;
1901
1902 if (size <= es->buffer_size)
1903 return TRUE;
1904
1905 TRACE("trying to ReAlloc to %d+1 characters\n", size);
1906
1907 /* Force edit to unlock it's buffer. es->text now NULL */
1908 EDIT_UnlockBuffer(es, TRUE);
1909
1910 if (es->hloc32W) {
1911 UINT alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1912 if ((hNew32W = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT))) {
1913 TRACE("Old 32 bit handle %p, new handle %p\n", es->hloc32W, hNew32W);
1914 es->hloc32W = hNew32W;
1915 es->buffer_size = LocalSize(hNew32W)/sizeof(WCHAR) - 1;
1916 }
1917 }
1918
1919 EDIT_LockBuffer(es);
1920
1921 if (es->buffer_size < size) {
1922 WARN("FAILED ! We now have %d+1\n", es->buffer_size);
1923 EDIT_NOTIFY_PARENT(es, EN_ERRSPACE);
1924 return FALSE;
1925 } else {
1926 TRACE("We now have %d+1\n", es->buffer_size);
1927 return TRUE;
1928 }
1929 }
1930
1931
1932 /*********************************************************************
1933 *
1934 * EDIT_MakeUndoFit
1935 *
1936 * Try to fit size + 1 bytes in the undo buffer.
1937 *
1938 */
1939 static BOOL EDIT_MakeUndoFit(EDITSTATE *es, UINT size)
1940 {
1941 UINT alloc_size;
1942
1943 if (size <= es->undo_buffer_size)
1944 return TRUE;
1945
1946 TRACE("trying to ReAlloc to %d+1\n", size);
1947
1948 alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1949 if ((es->undo_text = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, es->undo_text, alloc_size))) {
1950 es->undo_buffer_size = alloc_size/sizeof(WCHAR) - 1;
1951 return TRUE;
1952 }
1953 else
1954 {
1955 WARN("FAILED ! We now have %d+1\n", es->undo_buffer_size);
1956 return FALSE;
1957 }
1958 }
1959
1960
1961 /*********************************************************************
1962 *
1963 * EDIT_MoveBackward
1964 *
1965 */
1966 static void EDIT_MoveBackward(EDITSTATE *es, BOOL extend)
1967 {
1968 INT e = es->selection_end;
1969
1970 if (e) {
1971 e--;
1972 if ((es->style & ES_MULTILINE) && e &&
1973 (es->text[e - 1] == '\r') && (es->text[e] == '\n')) {
1974 e--;
1975 if (e && (es->text[e - 1] == '\r'))
1976 e--;
1977 }
1978 }
1979 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1980 EDIT_EM_ScrollCaret(es);
1981 }
1982
1983
1984 /*********************************************************************
1985 *
1986 * EDIT_MoveDown_ML
1987 *
1988 * Only for multi line controls
1989 * Move the caret one line down, on a column with the nearest
1990 * x coordinate on the screen (might be a different column).
1991 *
1992 */
1993 static void EDIT_MoveDown_ML(EDITSTATE *es, BOOL extend)
1994 {
1995 INT s = es->selection_start;
1996 INT e = es->selection_end;
1997 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1998 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1999 INT x = (short)LOWORD(pos);
2000 INT y = (short)HIWORD(pos);
2001
2002 e = EDIT_CharFromPos(es, x, y + es->line_height, &after_wrap);
2003 if (!extend)
2004 s = e;
2005 EDIT_EM_SetSel(es, s, e, after_wrap);
2006 EDIT_EM_ScrollCaret(es);
2007 }
2008
2009
2010 /*********************************************************************
2011 *
2012 * EDIT_MoveEnd
2013 *
2014 */
2015 static void EDIT_MoveEnd(EDITSTATE *es, BOOL extend)
2016 {
2017 BOOL after_wrap = FALSE;
2018 INT e;
2019
2020 /* Pass a high value in x to make sure of receiving the end of the line */
2021 if (es->style & ES_MULTILINE)
2022 e = EDIT_CharFromPos(es, 0x3fffffff,
2023 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), &after_wrap);
2024 else
2025 e = get_text_length(es);
2026 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, after_wrap);
2027 EDIT_EM_ScrollCaret(es);
2028 }
2029
2030
2031 /*********************************************************************
2032 *
2033 * EDIT_MoveForward
2034 *
2035 */
2036 static void EDIT_MoveForward(EDITSTATE *es, BOOL extend)
2037 {
2038 INT e = es->selection_end;
2039
2040 if (es->text[e]) {
2041 e++;
2042 if ((es->style & ES_MULTILINE) && (es->text[e - 1] == '\r')) {
2043 if (es->text[e] == '\n')
2044 e++;
2045 else if ((es->text[e] == '\r') && (es->text[e + 1] == '\n'))
2046 e += 2;
2047 }
2048 }
2049 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
2050 EDIT_EM_ScrollCaret(es);
2051 }
2052
2053
2054 /*********************************************************************
2055 *
2056 * EDIT_MoveHome
2057 *
2058 * Home key: move to beginning of line.
2059 *
2060 */
2061 static void EDIT_MoveHome(EDITSTATE *es, BOOL extend, BOOL ctrl)
2062 {
2063 INT e;
2064
2065 /* Pass the x_offset in x to make sure of receiving the first position of the line */
2066 if (!ctrl && (es->style & ES_MULTILINE))
2067 e = EDIT_CharFromPos(es, -es->x_offset,
2068 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), NULL);
2069 else
2070 e = 0;
2071 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
2072 EDIT_EM_ScrollCaret(es);
2073 }
2074
2075
2076 /*********************************************************************
2077 *
2078 * EDIT_MovePageDown_ML
2079 *
2080 * Only for multi line controls
2081 * Move the caret one page down, on a column with the nearest
2082 * x coordinate on the screen (might be a different column).
2083 *
2084 */
2085 static void EDIT_MovePageDown_ML(EDITSTATE *es, BOOL extend)
2086 {
2087 INT s = es->selection_start;
2088 INT e = es->selection_end;
2089 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
2090 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
2091 INT x = (short)LOWORD(pos);
2092 INT y = (short)HIWORD(pos);
2093
2094 e = EDIT_CharFromPos(es, x,
2095 y + (es->format_rect.bottom - es->format_rect.top),
2096 &after_wrap);
2097 if (!extend)
2098 s = e;
2099 EDIT_EM_SetSel(es, s, e, after_wrap);
2100 EDIT_EM_ScrollCaret(es);
2101 }
2102
2103
2104 /*********************************************************************
2105 *
2106 * EDIT_MovePageUp_ML
2107 *
2108 * Only for multi line controls
2109 * Move the caret one page up, on a column with the nearest
2110 * x coordinate on the screen (might be a different column).
2111 *
2112 */
2113 static void EDIT_MovePageUp_ML(EDITSTATE *es, BOOL extend)
2114 {
2115 INT s = es->selection_start;
2116 INT e = es->selection_end;
2117 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
2118 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
2119 INT x = (short)LOWORD(pos);
2120 INT y = (short)HIWORD(pos);
2121
2122 e = EDIT_CharFromPos(es, x,
2123 y - (es->format_rect.bottom - es->format_rect.top),
2124 &after_wrap);
2125 if (!extend)
2126 s = e;
2127 EDIT_EM_SetSel(es, s, e, after_wrap);
2128 EDIT_EM_ScrollCaret(es);
2129 }
2130
2131
2132 /*********************************************************************
2133 *
2134 * EDIT_MoveUp_ML
2135 *
2136 * Only for multi line controls
2137 * Move the caret one line up, on a column with the nearest
2138 * x coordinate on the screen (might be a different column).
2139 *
2140 */
2141 static void EDIT_MoveUp_ML(EDITSTATE *es, BOOL extend)
2142 {
2143 INT s = es->selection_start;
2144 INT e = es->selection_end;
2145 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
2146 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
2147 INT x = (short)LOWORD(pos);
2148 INT y = (short)HIWORD(pos);
2149
2150 e = EDIT_CharFromPos(es, x, y - es->line_height, &after_wrap);
2151 if (!extend)
2152 s = e;
2153 EDIT_EM_SetSel(es, s, e, after_wrap);
2154 EDIT_EM_ScrollCaret(es);
2155 }
2156
2157
2158 /*********************************************************************
2159 *
2160 * EDIT_MoveWordBackward
2161 *
2162 */
2163 static void EDIT_MoveWordBackward(EDITSTATE *es, BOOL extend)
2164 {
2165 INT s = es->selection_start;
2166 INT e = es->selection_end;
2167 INT l;
2168 INT ll;
2169 INT li;
2170
2171 l = EDIT_EM_LineFromChar(es, e);
2172 ll = EDIT_EM_LineLength(es, e);
2173 li = EDIT_EM_LineIndex(es, l);
2174 if (e - li == 0) {
2175 if (l) {
2176 li = EDIT_EM_LineIndex(es, l - 1);
2177 e = li + EDIT_EM_LineLength(es, li);
2178 }
2179 } else {
2180 e = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_LEFT);
2181 }
2182 if (!extend)
2183 s = e;
2184 EDIT_EM_SetSel(es, s, e, FALSE);
2185 EDIT_EM_ScrollCaret(es);
2186 }
2187
2188
2189 /*********************************************************************
2190 *
2191 * EDIT_MoveWordForward
2192 *
2193 */
2194 static void EDIT_MoveWordForward(EDITSTATE *es, BOOL extend)
2195 {
2196 INT s = es->selection_start;
2197 INT e = es->selection_end;
2198 INT l;
2199 INT ll;
2200 INT li;
2201
2202 l = EDIT_EM_LineFromChar(es, e);
2203 ll = EDIT_EM_LineLength(es, e);
2204 li = EDIT_EM_LineIndex(es, l);
2205 if (e - li == ll) {
2206 if ((es->style & ES_MULTILINE) && (l != es->line_count - 1))
2207 e = EDIT_EM_LineIndex(es, l + 1);
2208 } else {
2209 e = li + EDIT_CallWordBreakProc(es,
2210 li, e - li + 1, ll, WB_RIGHT);
2211 }
2212 if (!extend)
2213 s = e;
2214 EDIT_EM_SetSel(es, s, e, FALSE);
2215 EDIT_EM_ScrollCaret(es);
2216 }
2217
2218
2219 /*********************************************************************
2220 *
2221 * EDIT_PaintLine
2222 *
2223 */
2224 static void EDIT_PaintLine(EDITSTATE *es, HDC dc, INT line, BOOL rev)
2225 {
2226 INT s = es->selection_start;
2227 INT e = es->selection_end;
2228 INT li;
2229 INT ll;
2230 INT x;
2231 INT y;
2232 LRESULT pos;
2233
2234 if (es->style & ES_MULTILINE) {
2235 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2236 if ((line < es->y_offset) || (line > es->y_offset + vlc) || (line >= es->line_count))
2237 return;
2238 } else if (line)
2239 return;
2240
2241 TRACE("line=%d\n", line);
2242
2243 pos = EDIT_EM_PosFromChar(es, EDIT_EM_LineIndex(es, line), FALSE);
2244 x = (short)LOWORD(pos);
2245 y = (short)HIWORD(pos);
2246 li = EDIT_EM_LineIndex(es, line);
2247 ll = EDIT_EM_LineLength(es, li);
2248 s = min(es->selection_start, es->selection_end);
2249 e = max(es->selection_start, es->selection_end);
2250 s = min(li + ll, max(li, s));
2251 e = min(li + ll, max(li, e));
2252 if (rev && (s != e) &&
2253 ((es->flags & EF_FOCUSED) || (es->style & ES_NOHIDESEL))) {
2254 x += EDIT_PaintText(es, dc, x, y, line, 0, s - li, FALSE);
2255 x += EDIT_PaintText(es, dc, x, y, line, s - li, e - s, TRUE);
2256 x += EDIT_PaintText(es, dc, x, y, line, e - li, li + ll - e, FALSE);
2257 } else
2258 x += EDIT_PaintText(es, dc, x, y, line, 0, ll, FALSE);
2259 }
2260
2261
2262 /*********************************************************************
2263 *
2264 * EDIT_PaintText
2265 *
2266 */
2267 static INT EDIT_PaintText(EDITSTATE *es, HDC dc, INT x, INT y, INT line, INT col, INT count, BOOL rev)
2268 {
2269 COLORREF BkColor;
2270 COLORREF TextColor;
2271 LOGFONTW underline_font;
2272 HFONT hUnderline = 0;
2273 HFONT old_font = 0;
2274 INT ret;
2275 INT li;
2276 INT BkMode;
2277 SIZE size;
2278
2279 if (!count)
2280 return 0;
2281 BkMode = GetBkMode(dc);
2282 BkColor = GetBkColor(dc);
2283 TextColor = GetTextColor(dc);
2284 if (rev) {
2285 if (es->composition_len == 0)
2286 {
2287 SetBkColor(dc, GetSysColor(COLOR_HIGHLIGHT));
2288 SetTextColor(dc, GetSysColor(COLOR_HIGHLIGHTTEXT));
2289 SetBkMode( dc, OPAQUE);
2290 }
2291 else
2292 {
2293 HFONT current = GetCurrentObject(dc,OBJ_FONT);
2294 GetObjectW(current,sizeof(LOGFONTW),&underline_font);
2295 underline_font.lfUnderline = TRUE;
2296 hUnderline = CreateFontIndirectW(&underline_font);
2297 old_font = SelectObject(dc,hUnderline);
2298 }
2299 }
2300 li = EDIT_EM_LineIndex(es, line);
2301 if (es->style & ES_MULTILINE) {
2302 ret = (INT)LOWORD(TabbedTextOutW(dc, x, y, es->text + li + col, count,
2303 es->tabs_count, es->tabs, es->format_rect.left - es->x_offset));
2304 } else {
2305 LPWSTR text = EDIT_GetPasswordPointer_SL(es);
2306 TextOutW(dc, x, y, text + li + col, count);
2307 GetTextExtentPoint32W(dc, text + li + col, count, &size);
2308 ret = size.cx;
2309 if (es->style & ES_PASSWORD)
2310 HeapFree(GetProcessHeap(), 0, text);
2311 }
2312 if (rev) {
2313 if (es->composition_len == 0)
2314 {
2315 SetBkColor(dc, BkColor);
2316 SetTextColor(dc, TextColor);
2317 SetBkMode( dc, BkMode);
2318 }
2319 else
2320 {
2321 if (old_font)
2322 SelectObject(dc,old_font);
2323 if (hUnderline)
2324 DeleteObject(hUnderline);
2325 }
2326 }
2327 return ret;
2328 }
2329
2330
2331 /*********************************************************************
2332 *
2333 * EDIT_SetCaretPos
2334 *
2335 */
2336 static void EDIT_SetCaretPos(EDITSTATE *es, INT pos,
2337 BOOL after_wrap)
2338 {
2339 LRESULT res = EDIT_EM_PosFromChar(es, pos, after_wrap);
2340 TRACE("%d - %dx%d\n", pos, (short)LOWORD(res), (short)HIWORD(res));
2341 SetCaretPos((short)LOWORD(res), (short)HIWORD(res));
2342 }
2343
2344
2345 /*********************************************************************
2346 *
2347 * EDIT_AdjustFormatRect
2348 *
2349 * Adjusts the format rectangle for the current font and the
2350 * current client rectangle.
2351 *
2352 */
2353 static void EDIT_AdjustFormatRect(EDITSTATE *es)
2354 {
2355 RECT ClientRect;
2356
2357 es->format_rect.right = max(es->format_rect.right, es->format_rect.left + es->char_width);
2358 if (es->style & ES_MULTILINE)
2359 {
2360 INT fw, vlc, max_x_offset, max_y_offset;
2361
2362 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2363 es->format_rect.bottom = es->format_rect.top + max(1, vlc) * es->line_height;
2364
2365 /* correct es->x_offset */
2366 fw = es->format_rect.right - es->format_rect.left;
2367 max_x_offset = es->text_width - fw;
2368 if(max_x_offset < 0) max_x_offset = 0;
2369 if(es->x_offset > max_x_offset)
2370 es->x_offset = max_x_offset;
2371
2372 /* correct es->y_offset */
2373 max_y_offset = es->line_count - vlc;
2374 if(max_y_offset < 0) max_y_offset = 0;
2375 if(es->y_offset > max_y_offset)
2376 es->y_offset = max_y_offset;
2377
2378 /* force scroll info update */
2379 EDIT_UpdateScrollInfo(es);
2380 }
2381 else
2382 /* Windows doesn't care to fix text placement for SL controls */
2383 es->format_rect.bottom = es->format_rect.top + es->line_height;
2384
2385 /* Always stay within the client area */
2386 GetClientRect(es->hwndSelf, &ClientRect);
2387 es->format_rect.bottom = min(es->format_rect.bottom, ClientRect.bottom);
2388
2389 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL))
2390 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
2391
2392 EDIT_SetCaretPos(es, es->selection_end, es->flags & EF_AFTER_WRAP);
2393 }
2394
2395
2396 /*********************************************************************
2397 *
2398 * EDIT_SetRectNP
2399 *
2400 * note: this is not (exactly) the handler called on EM_SETRECTNP
2401 * it is also used to set the rect of a single line control
2402 *
2403 */
2404 static void EDIT_SetRectNP(EDITSTATE *es, const RECT *rc)
2405 {
2406 LONG_PTR ExStyle;
2407 INT bw, bh;
2408 ExStyle = GetWindowLongPtrW(es->hwndSelf, GWL_EXSTYLE);
2409
2410 CopyRect(&es->format_rect, rc);
2411
2412 if (ExStyle & WS_EX_CLIENTEDGE) {
2413 es->format_rect.left++;
2414 es->format_rect.right--;
2415
2416 if (es->format_rect.bottom - es->format_rect.top
2417 >= es->line_height + 2)
2418 {
2419 es->format_rect.top++;
2420 es->format_rect.bottom--;
2421 }
2422 }
2423 else if (es->style & WS_BORDER) {
2424 bw = GetSystemMetrics(SM_CXBORDER) + 1;
2425 bh = GetSystemMetrics(SM_CYBORDER) + 1;
2426 es->format_rect.left += bw;
2427 es->format_rect.right -= bw;
2428 if (es->format_rect.bottom - es->format_rect.top
2429 >= es->line_height + 2 * bh)
2430 {
2431 es->format_rect.top += bh;
2432 es->format_rect.bottom -= bh;
2433 }
2434 }
2435
2436 es->format_rect.left += es->left_margin;
2437 es->format_rect.right -= es->right_margin;
2438 EDIT_AdjustFormatRect(es);
2439 }
2440
2441
2442 /*********************************************************************
2443 *
2444 * EDIT_UnlockBuffer
2445 *
2446 */
2447 static void EDIT_UnlockBuffer(EDITSTATE *es, BOOL force)
2448 {
2449
2450 /* Edit window might be already destroyed */
2451 if(!IsWindow(es->hwndSelf))
2452 {
2453 WARN("edit hwnd %p already destroyed\n", es->hwndSelf);
2454 return;
2455 }
2456
2457 if (!es->lock_count) {
2458 ERR("lock_count == 0 ... please report\n");
2459 return;
2460 }
2461 if (!es->text) {
2462 ERR("es->text == 0 ... please report\n");
2463 return;
2464 }
2465
2466 if (force || (es->lock_count == 1)) {
2467 if (es->hloc32W) {
2468 CHAR *textA = NULL;
2469 UINT countA = 0;
2470 UINT countW = get_text_length(es) + 1;
2471 STACK16FRAME* stack16 = NULL;
2472 HANDLE16 oldDS = 0;
2473
2474 if(es->hloc32A)
2475 {
2476 UINT countA_new = WideCharToMultiByte(CP_ACP, 0, es->text, countW, NULL, 0, NULL, NULL);
2477 TRACE("Synchronizing with 32-bit ANSI buffer\n");
2478 TRACE("%d WCHARs translated to %d bytes\n", countW, countA_new);
2479 countA = LocalSize(es->hloc32A);
2480 if(countA_new > countA)
2481 {
2482 HLOCAL hloc32A_new;
2483 UINT alloc_size = ROUND_TO_GROW(countA_new);
2484 TRACE("Resizing 32-bit ANSI buffer from %d to %d bytes\n", countA, alloc_size);
2485 hloc32A_new = LocalReAlloc(es->hloc32A, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
2486 if(hloc32A_new)
2487 {
2488 es->hloc32A = hloc32A_new;
2489 countA = LocalSize(hloc32A_new);
2490 TRACE("Real new size %d bytes\n", countA);
2491 }
2492 else
2493 WARN("FAILED! Will synchronize partially\n");
2494 }
2495 textA = LocalLock(es->hloc32A);
2496 }
2497 else if(es->hloc16)
2498 {
2499 UINT countA_new = WideCharToMultiByte(CP_ACP, 0, es->text, countW, NULL, 0, NULL, NULL);
2500
2501 TRACE("Synchronizing with 16-bit ANSI buffer\n");
2502 TRACE("%d WCHARs translated to %d bytes\n", countW, countA_new);
2503
2504 stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
2505 oldDS = stack16->ds;
2506 stack16->ds = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
2507
2508 countA = LocalSize16(es->hloc16);
2509 if(countA_new > countA)
2510 {
2511 HLOCAL16 hloc16_new;
2512 UINT alloc_size = ROUND_TO_GROW(countA_new);
2513 TRACE("Resizing 16-bit ANSI buffer from %d to %d bytes\n", countA, alloc_size);
2514 hloc16_new = LocalReAlloc16(es->hloc16, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
2515 if(hloc16_new)
2516 {
2517 es->hloc16 = hloc16_new;
2518 countA = LocalSize16(hloc16_new);
2519 TRACE("Real new size %d bytes\n", countA);
2520 }
2521 else
2522 WARN("FAILED! Will synchronize partially\n");
2523 }
2524 textA = MapSL(LocalLock16(es->hloc16));
2525 }
2526
2527 if(textA)
2528 {
2529 WideCharToMultiByte(CP_ACP, 0, es->text, countW, textA, countA, NULL, NULL);
2530 if(stack16)
2531 LocalUnlock16(es->hloc16);
2532 else
2533 LocalUnlock(es->hloc32A);
2534 }
2535
2536 if (stack16) stack16->ds = oldDS;
2537 LocalUnlock(es->hloc32W);
2538 es->text = NULL;
2539 }
2540 else {
2541 ERR("no buffer ... please report\n");
2542 return;
2543 }
2544 }
2545 es->lock_count--;
2546 }
2547
2548
2549 /*********************************************************************
2550 *
2551 * EDIT_UpdateScrollInfo
2552 *
2553 */
2554 static void EDIT_UpdateScrollInfo(EDITSTATE *es)
2555 {
2556 if ((es->style & WS_VSCROLL) && !(es->flags & EF_VSCROLL_TRACK))
2557 {
2558 SCROLLINFO si;
2559 si.cbSize = sizeof(SCROLLINFO);
2560 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
2561 si.nMin = 0;
2562 si.nMax = es->line_count - 1;
2563 si.nPage = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2564 si.nPos = es->y_offset;
2565 TRACE("SB_VERT, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
2566 si.nMin, si.nMax, si.nPage, si.nPos);
2567 SetScrollInfo(es->hwndSelf, SB_VERT, &si, TRUE);
2568 }
2569
2570 if ((es->style & WS_HSCROLL) && !(es->flags & EF_HSCROLL_TRACK))
2571 {
2572 SCROLLINFO si;
2573 si.cbSize = sizeof(SCROLLINFO);
2574 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
2575 si.nMin = 0;
2576 si.nMax = es->text_width - 1;
2577 si.nPage = es->format_rect.right - es->format_rect.left;
2578 si.nPos = es->x_offset;
2579 TRACE("SB_HORZ, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
2580 si.nMin, si.nMax, si.nPage, si.nPos);
2581 SetScrollInfo(es->hwndSelf, SB_HORZ, &si, TRUE);
2582 }
2583 }
2584
2585 /*********************************************************************
2586 *
2587 * EDIT_WordBreakProc
2588 *
2589 * Find the beginning of words.
2590 * Note: unlike the specs for a WordBreakProc, this function only
2591 * allows to be called without linebreaks between s[0] up to
2592 * s[count - 1]. Remember it is only called
2593 * internally, so we can decide this for ourselves.
2594 *
2595 */
2596 static INT CALLBACK EDIT_WordBreakProc(LPWSTR s, INT index, INT count, INT action)
2597 {
2598 INT ret = 0;
2599
2600 TRACE("s=%p, index=%d, count=%d, action=%d\n", s, index, count, action);
2601
2602 if(!s) return 0;
2603
2604 switch (action) {
2605 case WB_LEFT:
2606 if (!count)
2607 break;
2608 if (index)
2609 index--;
2610 if (s[index] == ' ') {
2611 while (index && (s[index] == ' '))
2612 index--;
2613 if (index) {
2614 while (index && (s[index] != ' '))
2615 index--;
2616 if (s[index] == ' ')
2617 index++;
2618 }
2619 } else {
2620 while (index && (s[index] != ' '))
2621 index--;
2622 if (s[index] == ' ')
2623 index++;
2624 }
2625 ret = index;
2626 break;
2627 case WB_RIGHT:
2628 if (!count)
2629 break;
2630 if (index)
2631 index--;
2632 if (s[index] == ' ')
2633 while ((index < count) && (s[index] == ' ')) index++;
2634 else {
2635 while (s[index] && (s[index] != ' ') && (index < count))
2636 index++;
2637 while ((s[index] == ' ') && (index < count)) index++;
2638 }
2639 ret = index;
2640 break;
2641 case WB_ISDELIMITER:
2642 ret = (s[index] == ' ');
2643 break;
2644 default:
2645 ERR("unknown action code, please report !\n");
2646 break;
2647 }
2648 return ret;
2649 }
2650
2651
2652 /*********************************************************************
2653 *
2654 * EM_CHARFROMPOS
2655 *
2656 * returns line number (not index) in high-order word of result.
2657 * NB : Q137805 is unclear about this. POINT * pointer in lParam apply
2658 * to Richedit, not to the edit control. Original documentation is valid.
2659 * FIXME: do the specs mean to return -1 if outside client area or
2660 * if outside formatting rectangle ???
2661 *
2662 */
2663 static LRESULT EDIT_EM_CharFromPos(EDITSTATE *es, INT x, INT y)
2664 {
2665 POINT pt;
2666 RECT rc;
2667 INT index;
2668
2669 pt.x = x;
2670 pt.y = y;
2671 GetClientRect(es->hwndSelf, &rc);
2672 if (!PtInRect(&rc, pt))
2673 return -1;
2674
2675 index = EDIT_CharFromPos(es, x, y, NULL);
2676 return MAKELONG(index, EDIT_EM_LineFromChar(es, index));
2677 }
2678
2679
2680 /*********************************************************************
2681 *
2682 * EM_FMTLINES
2683 *
2684 * Enable or disable soft breaks.
2685 *
2686 * This means: insert or remove the soft linebreak character (\r\r\n).
2687 * Take care to check if the text still fits the buffer after insertion.
2688 * If not, notify with EN_ERRSPACE.
2689 *
2690 */
2691 static BOOL EDIT_EM_FmtLines(EDITSTATE *es, BOOL add_eol)
2692 {
2693 es->flags &= ~EF_USE_SOFTBRK;
2694 if (add_eol) {
2695 es->flags |= EF_USE_SOFTBRK;
2696 FIXME("soft break enabled, not implemented\n");
2697 }
2698 return add_eol;
2699 }
2700
2701
2702 /*********************************************************************
2703 *
2704 * EM_GETHANDLE
2705 *
2706 * Hopefully this won't fire back at us.
2707 * We always start with a fixed buffer in the local heap.
2708 * Despite of the documentation says that the local heap is used
2709 * only if DS_LOCALEDIT flag is set, NT and 2000 always allocate
2710 * buffer on the local heap.
2711 *
2712 */
2713 static HLOCAL EDIT_EM_GetHandle(EDITSTATE *es)
2714 {
2715 HLOCAL hLocal;
2716
2717 if (!(es->style & ES_MULTILINE))
2718 return 0;
2719
2720 if(es->is_unicode)
2721 hLocal = es->hloc32W;
2722 else
2723 {
2724 if(!es->hloc32A)
2725 {
2726 CHAR *textA;
2727 UINT countA, alloc_size;
2728 TRACE("Allocating 32-bit ANSI alias buffer\n");
2729 countA = WideCharToMultiByte(CP_ACP, 0, es->text, -1, NULL, 0, NULL, NULL);
2730 alloc_size = ROUND_TO_GROW(countA);
2731 if(!(es->hloc32A = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
2732 {
2733 ERR("Could not allocate %d bytes for 32-bit ANSI alias buffer\n", alloc_size);
2734 return 0;
2735 }
2736 textA = LocalLock(es->hloc32A);
2737 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, countA, NULL, NULL);
2738 LocalUnlock(es->hloc32A);
2739 }
2740 hLocal = es->hloc32A;
2741 }
2742
2743 es->flags |= EF_APP_HAS_HANDLE;
2744 TRACE("Returning %p, LocalSize() = %ld\n", hLocal, LocalSize(hLocal));
2745 return hLocal;
2746 }
2747
2748
2749 /*********************************************************************
2750 *
2751 * EM_GETHANDLE16
2752 *
2753 * Hopefully this won't fire back at us.
2754 * We always start with a buffer in 32 bit linear memory.
2755 * However, with this message a 16 bit application requests
2756 * a handle of 16 bit local heap memory, where it expects to find
2757 * the text.
2758 * It's a pitty that from this moment on we have to use this
2759 * local heap, because applications may rely on the handle
2760 * in the future.
2761 *
2762 * In this function we'll try to switch to local heap.
2763 */
2764 static HLOCAL16 EDIT_EM_GetHandle16(EDITSTATE *es)
2765 {
2766 CHAR *textA;
2767 UINT countA, alloc_size;
2768 STACK16FRAME* stack16;
2769 HANDLE16 oldDS;
2770
2771 if (!(es->style & ES_MULTILINE))
2772 return 0;
2773
2774 if (es->hloc16)
2775 return es->hloc16;
2776
2777 stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
2778 oldDS = stack16->ds;
2779 stack16->ds = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
2780
2781 if (!LocalHeapSize16()) {
2782
2783 if (!LocalInit16(stack16->ds, 0, GlobalSize16(stack16->ds))) {
2784 ERR("could not initialize local heap\n");
2785 goto done;
2786 }
2787 TRACE("local heap initialized\n");
2788 }
2789
2790 countA = WideCharToMultiByte(CP_ACP, 0, es->text, -1, NULL, 0, NULL, NULL);
2791 alloc_size = ROUND_TO_GROW(countA);
2792
2793 TRACE("Allocating 16-bit ANSI alias buffer\n");
2794 if (!(es->hloc16 = LocalAlloc16(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size))) {
2795 ERR("could not allocate new 16 bit buffer\n");
2796 goto done;
2797 }
2798
2799 if (!(textA = MapSL(LocalLock16( es->hloc16)))) {
2800 ERR("could not lock new 16 bit buffer\n");
2801 LocalFree16(es->hloc16);
2802 es->hloc16 = 0;
2803 goto done;
2804 }
2805
2806 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, countA, NULL, NULL);
2807 LocalUnlock16(es->hloc16);
2808 es->flags |= EF_APP_HAS_HANDLE;
2809
2810 TRACE("Returning %04X, LocalSize() = %d\n", es->hloc16, LocalSize16(es->hloc16));
2811
2812 done:
2813 stack16->ds = oldDS;
2814 return es->hloc16;
2815 }
2816
2817
2818 /*********************************************************************
2819 *
2820 * EM_GETLINE
2821 *
2822 */
2823 static INT EDIT_EM_GetLine(EDITSTATE *es, INT line, LPWSTR dst, BOOL unicode)
2824 {
2825 LPWSTR src;
2826 INT line_len, dst_len;
2827 INT i;
2828
2829 if (es->style & ES_MULTILINE) {
2830 if (line >= es->line_count)
2831 return 0;
2832 } else
2833 line = 0;
2834 i = EDIT_EM_LineIndex(es, line);
2835 src = es->text + i;
2836 line_len = EDIT_EM_LineLength(es, i);
2837 dst_len = *(WORD *)dst;
2838 if(unicode)
2839 {
2840 if(dst_len <= line_len)
2841 {
2842 memcpy(dst, src, dst_len * sizeof(WCHAR));
2843 return dst_len;
2844 }
2845 else /* Append 0 if enough space */
2846 {
2847 memcpy(dst, src, line_len * sizeof(WCHAR));
2848 dst[line_len] = 0;
2849 return line_len;
2850 }
2851 }
2852 else
2853 {
2854 INT ret = WideCharToMultiByte(CP_ACP, 0, src, line_len, (LPSTR)dst, dst_len, NULL, NULL);
2855 if(!ret && line_len) /* Insufficient buffer size */
2856 return dst_len;
2857 if(ret < dst_len) /* Append 0 if enough space */
2858 ((LPSTR)dst)[ret] = 0;
2859 return ret;
2860 }
2861 }
2862
2863
2864 /*********************************************************************
2865 *
2866 * EM_GETSEL
2867 *
2868 */
2869 static LRESULT EDIT_EM_GetSel(const EDITSTATE *es, PUINT start, PUINT end)
2870 {
2871 UINT s = es->selection_start;
2872 UINT e = es->selection_end;
2873
2874 ORDER_UINT(s, e);
2875 if (start)
2876 *start = s;
2877 if (end)
2878 *end = e;
2879 return MAKELONG(s, e);
2880 }
2881
2882
2883 /*********************************************************************
2884 *
2885 * EM_GETTHUMB
2886 *
2887 * FIXME: is this right ? (or should it be only VSCROLL)
2888 * (and maybe only for edit controls that really have their
2889 * own scrollbars) (and maybe only for multiline controls ?)
2890 * All in all: very poorly documented
2891 *
2892 */
2893 static LRESULT EDIT_EM_GetThumb(EDITSTATE *es)
2894 {
2895 return MAKELONG(EDIT_WM_VScroll(es, EM_GETTHUMB16, 0),
2896 EDIT_WM_HScroll(es, EM_GETTHUMB16, 0));
2897 }
2898
2899
2900 /*********************************************************************
2901 *
2902 * EM_LINEFROMCHAR
2903 *
2904 */
2905 static INT EDIT_EM_LineFromChar(EDITSTATE *es, INT index)
2906 {
2907 INT line;
2908 LINEDEF *line_def;
2909
2910 if (!(es->style & ES_MULTILINE))
2911 return 0;
2912 if (index > (INT)get_text_length(es))
2913 return es->line_count - 1;
2914 if (index == -1)
2915 index = min(es->selection_start, es->selection_end);
2916
2917 line = 0;
2918 line_def = es->first_line_def;
2919 index -= line_def->length;
2920 while ((index >= 0) && line_def->next) {
2921 line++;
2922 line_def = line_def->next;
2923 index -= line_def->length;
2924 }
2925 return line;
2926 }
2927
2928
2929 /*********************************************************************
2930 *
2931 * EM_LINEINDEX
2932 *
2933 */
2934 static INT EDIT_EM_LineIndex(const EDITSTATE *es, INT line)
2935 {
2936 INT line_index;
2937 const LINEDEF *line_def;
2938
2939 if (!(es->style & ES_MULTILINE))
2940 return 0;
2941 if (line >= es->line_count)
2942 return -1;
2943
2944 line_index = 0;
2945 line_def = es->first_line_def;
2946 if (line == -1) {
2947 INT index = es->selection_end - line_def->length;
2948 while ((index >= 0) && line_def->next) {
2949 line_index += line_def->length;
2950 line_def = line_def->next;
2951 index -= line_def->length;
2952 }
2953 } else {
2954 while (line > 0) {
2955 line_index += line_def->length;
2956 line_def = line_def->next;
2957 line--;
2958 }
2959 }
2960 return line_index;
2961 }
2962
2963
2964 /*********************************************************************
2965 *
2966 * EM_LINELENGTH
2967 *
2968 */
2969 static INT EDIT_EM_LineLength(EDITSTATE *es, INT index)
2970 {
2971 LINEDEF *line_def;
2972
2973 if (!(es->style & ES_MULTILINE))
2974 return get_text_length(es);
2975
2976 if (index == -1) {
2977 /* get the number of remaining non-selected chars of selected lines */
2978 INT32 l; /* line number */
2979 INT32 li; /* index of first char in line */
2980 INT32 count;
2981 l = EDIT_EM_LineFromChar(es, es->selection_start);
2982 /* # chars before start of selection area */
2983 count = es->selection_start - EDIT_EM_LineIndex(es, l);
2984 l = EDIT_EM_LineFromChar(es, es->selection_end);
2985 /* # chars after end of selection */
2986 li = EDIT_EM_LineIndex(es, l);
2987 count += li + EDIT_EM_LineLength(es, li) - es->selection_end;
2988 return count;
2989 }
2990 line_def = es->first_line_def;
2991 index -= line_def->length;
2992 while ((index >= 0) && line_def->next) {
2993 line_def = line_def->next;
2994 index -= line_def->length;
2995 }
2996 return line_def->net_length;
2997 }
2998
2999
3000 /*********************************************************************
3001 *
3002 * EM_LINESCROLL
3003 *
3004 * NOTE: dx is in average character widths, dy - in lines;
3005 *
3006 */
3007 static BOOL EDIT_EM_LineScroll(EDITSTATE *es, INT dx, INT dy)
3008 {
3009 if (!(es->style & ES_MULTILINE))
3010 return FALSE;
3011
3012 dx *= es->char_width;
3013 return EDIT_EM_LineScroll_internal(es, dx, dy);
3014 }
3015
3016 /*********************************************************************
3017 *
3018 * EDIT_EM_LineScroll_internal
3019 *
3020 * Version of EDIT_EM_LineScroll for internal use.
3021 * It doesn't refuse if ES_MULTILINE is set and assumes that
3022 * dx is in pixels, dy - in lines.
3023 *
3024 */
3025 static BOOL EDIT_EM_LineScroll_internal(EDITSTATE *es, INT dx, INT dy)
3026 {
3027 INT nyoff;
3028 INT x_offset_in_pixels;
3029 INT lines_per_page = (es->format_rect.bottom - es->format_rect.top) /
3030 es->line_height;
3031
3032 if (es->style & ES_MULTILINE)
3033 {
3034 x_offset_in_pixels = es->x_offset;
3035 }
3036 else
3037 {
3038 dy = 0;
3039 x_offset_in_pixels = (short)LOWORD(EDIT_EM_PosFromChar(es, es->x_offset, FALSE));
3040 }
3041
3042 if (-dx > x_offset_in_pixels)
3043 dx = -x_offset_in_pixels;
3044 if (dx > es->text_width - x_offset_in_pixels)
3045 dx = es->text_width - x_offset_in_pixels;
3046 nyoff = max(0, es->y_offset + dy);
3047 if (nyoff >= es->line_count - lines_per_page)
3048 nyoff = max(0, es->line_count - lines_per_page);
3049 dy = (es->y_offset - nyoff) * es->line_height;
3050 if (dx || dy) {
3051 RECT rc1;
3052 RECT rc;
3053
3054 es->y_offset = nyoff;
3055 if(es->style & ES_MULTILINE)
3056 es->x_offset += dx;
3057 else
3058 es->x_offset += dx / es->char_width;
3059
3060 GetClientRect(es->hwndSelf, &rc1);
3061 IntersectRect(&rc, &rc1, &es->format_rect);
3062 ScrollWindowEx(es->hwndSelf, -dx, dy,
3063 NULL, &rc, NULL, NULL, SW_INVALIDATE);
3064 /* force scroll info update */
3065 EDIT_UpdateScrollInfo(es);
3066 }
3067 if (dx && !(es->flags & EF_HSCROLL_TRACK))
3068 EDIT_NOTIFY_PARENT(es, EN_HSCROLL);
3069 if (dy && !(es->flags & EF_VSCROLL_TRACK))
3070 EDIT_NOTIFY_PARENT(es, EN_VSCROLL);
3071 return TRUE;
3072 }
3073
3074
3075 /*********************************************************************
3076 *
3077 * EM_POSFROMCHAR
3078 *
3079 */
3080 static LRESULT EDIT_EM_PosFromChar(EDITSTATE *es, INT index, BOOL after_wrap)
3081 {
3082 INT len = get_text_length(es);
3083 INT l;
3084 INT li;
3085 INT x;
3086 INT y = 0;
3087 INT w;
3088 INT lw = 0;
3089 INT ll = 0;
3090 HDC dc;
3091 HFONT old_font = 0;
3092 SIZE size;
3093 LINEDEF *line_def;
3094
3095 index = min(index, len);
3096 dc = GetDC(es->hwndSelf);
3097 if (es->font)
3098 old_font = SelectObject(dc, es->font);
3099 if (es->style & ES_MULTILINE) {
3100 l = EDIT_EM_LineFromChar(es, index);
3101 y = (l - es->y_offset) * es->line_height;
3102 li = EDIT_EM_LineIndex(es, l);
3103 if (after_wrap && (li == index) && l) {
3104 INT l2 = l - 1;
3105 line_def = es->first_line_def;
3106 while (l2) {
3107 line_def = line_def->next;
3108 l2--;
3109 }
3110 if (line_def->ending == END_WRAP) {
3111 l--;
3112 y -= es->line_height;
3113 li = EDIT_EM_LineIndex(es, l);
3114 }
3115 }
3116
3117 line_def = es->first_line_def;
3118 while (line_def->index != li)
3119 line_def = line_def->next;
3120
3121 ll = line_def->net_length;
3122 lw = line_def->width;
3123
3124 w = es->format_rect.right - es->format_rect.left;
3125 if (es->style & ES_RIGHT)
3126 {
3127 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li + (index - li), ll - (index - li),
3128 es->tabs_count, es->tabs)) - es->x_offset;
3129 x = w - x;
3130 }
3131 else if (es->style & ES_CENTER)
3132 {
3133 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li, index - li,
3134 es->tabs_count, es->tabs)) - es->x_offset;
3135 x += (w - lw) / 2;
3136 }
3137 else /* ES_LEFT */
3138 {
3139 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li, index - li,
3140 es->tabs_count, es->tabs)) - es->x_offset;
3141 }
3142 } else {
3143 LPWSTR text = EDIT_GetPasswordPointer_SL(es);
3144 if (index < es->x_offset) {
3145 GetTextExtentPoint32W(dc, text + index,
3146 es->x_offset - index, &size);
3147 x = -size.cx;
3148 } else {
3149 GetTextExtentPoint32W(dc, text + es->x_offset,
3150 index - es->x_offset, &size);
3151 x = size.cx;
3152
3153 if (!es->x_offset && (es->style & (ES_RIGHT | ES_CENTER)))
3154 {
3155 w = es->format_rect.right - es->format_rect.left;
3156 if (w > es->text_width)
3157 {
3158 if (es->style & ES_RIGHT)
3159 x += w - es->text_width;
3160 else if (es->style & ES_CENTER)
3161 x += (w - es->text_width) / 2;
3162 }
3163 }
3164 }
3165 y = 0;
3166 if (es->style & ES_PASSWORD)
3167 HeapFree(GetProcessHeap(), 0, text);
3168 }
3169 x += es->format_rect.left;
3170 y += es->format_rect.top;
3171 if (es->font)
3172 SelectObject(dc, old_font);
3173 ReleaseDC(es->hwndSelf, dc);
3174 return MAKELONG((INT16)x, (INT16)y);
3175 }
3176
3177
3178 /*********************************************************************
3179 *
3180 * EM_REPLACESEL
3181 *
3182 * FIXME: handle ES_NUMBER and ES_OEMCONVERT here
3183 *
3184 */
3185 static void EDIT_EM_ReplaceSel(EDITSTATE *es, BOOL can_undo, LPCWSTR lpsz_replace, BOOL send_update, BOOL honor_limit)
3186 {
3187 UINT strl = strlenW(lpsz_replace);
3188 UINT tl = get_text_length(es);
3189 UINT utl;
3190 UINT s;
3191 UINT e;
3192 UINT i;
3193 UINT size;
3194 LPWSTR p;
3195 HRGN hrgn = 0;
3196 LPWSTR buf = NULL;
3197 UINT bufl = 0;
3198
3199 TRACE("%s, can_undo %d, send_update %d\n",
3200 debugstr_w(lpsz_replace), can_undo, send_update);
3201
3202 s = es->selection_start;
3203 e = es->selection_end;
3204
3205 if ((s == e) && !strl)
3206 return;
3207
3208 ORDER_UINT(s, e);
3209
3210 size = tl - (e - s) + strl;
3211 if (!size)
3212 es->text_width = 0;
3213
3214 /* Issue the EN_MAXTEXT notification and continue with replacing text
3215 * such that buffer limit is honored. */
3216 if ((honor_limit) && (size > es->buffer_limit)) {
3217 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT);
3218 /* Buffer limit can be smaller than the actual length of text in combobox */
3219 if (es->buffer_limit < (tl - (e-s)))
3220 strl = 0;
3221 else
3222 strl = es->buffer_limit - (tl - (e-s));
3223 }
3224
3225 if (!EDIT_MakeFit(es, tl - (e - s) + strl))
3226 return;
3227
3228 if (e != s) {
3229 /* there is something to be deleted */
3230 TRACE("deleting stuff.\n");
3231 bufl = e - s;
3232 buf = HeapAlloc(GetProcessHeap(), 0, (bufl + 1) * sizeof(WCHAR));
3233 if (!buf) return;
3234 memcpy(buf, es->text + s, bufl * sizeof(WCHAR));
3235 buf[bufl] = 0; /* ensure 0 termination */
3236 /* now delete */
3237 strcpyW(es->text + s, es->text + e);
3238 text_buffer_changed(es);
3239 }
3240 if (strl) {
3241 /* there is an insertion */
3242 tl = get_text_length(es);
3243 TRACE("inserting stuff (tl %d, strl %d, selstart %d (%s), text %s)\n", tl, strl, s, debugstr_w(es->text + s), debugstr_w(es->text));
3244 for (p = es->text + tl ; p >= es->text + s ; p--)
3245 p[strl] = p[0];
3246 for (i = 0 , p = es->text + s ; i < strl ; i++)
3247 p[i] = lpsz_replace[i];
3248 if(es->style & ES_UPPERCASE)
3249 CharUpperBuffW(p, strl);
3250 else if(es->style & ES_LOWERCASE)
3251 CharLowerBuffW(p, strl);
3252 text_buffer_changed(es);
3253 }
3254 if (es->style & ES_MULTILINE)
3255 {
3256 INT st = min(es->selection_start, es->selection_end);
3257 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3258
3259 hrgn = CreateRectRgn(0, 0, 0, 0);
3260 EDIT_BuildLineDefs_ML(es, st, st + strl,
3261 strl - abs(es->selection_end - es->selection_start), hrgn);
3262 /* if text is too long undo all changes */
3263 if (honor_limit && !(es->style & ES_AUTOVSCROLL) && (es->line_count > vlc)) {
3264 if (strl)
3265 strcpyW(es->text + e, es->text + e + strl);
3266 if (e != s)
3267 for (i = 0 , p = es->text ; i < e - s ; i++)
3268 p[i + s] = buf[i];
3269 text_buffer_changed(es);
3270 EDIT_BuildLineDefs_ML(es, s, e,
3271 abs(es->selection_end - es->selection_start) - strl, hrgn);
3272 strl = 0;
3273 e = s;
3274 hrgn = CreateRectRgn(0, 0, 0, 0);
3275 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT);
3276 }
3277 }
3278 else {
3279 INT fw = es->format_rect.right - es->format_rect.left;
3280 EDIT_CalcLineWidth_SL(es);
3281 /* remove chars that don't fit */
3282 if (honor_limit && !(es->style & ES_AUTOHSCROLL) && (es->text_width > fw)) {
3283 while ((es->text_width > fw) && s + strl >= s) {
3284 strcpyW(es->text + s + strl - 1, es->text + s + strl);
3285 strl--;
3286 EDIT_CalcLineWidth_SL(es);
3287 }
3288 text_buffer_changed(es);
3289 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT);
3290 }
3291 }
3292
3293 if (e != s) {
3294 if (can_undo) {
3295 utl = strlenW(es->undo_text);
3296 if (!es->undo_insert_count && (*es->undo_text && (s == es->undo_position))) {
3297 /* undo-buffer is extended to the right */
3298 EDIT_MakeUndoFit(es, utl + e - s);
3299 memcpy(es->undo_text + utl, buf, (e - s)*sizeof(WCHAR));
3300 (es->undo_text + utl)[e - s] = 0; /* ensure 0 termination */
3301 } else if (!es->undo_insert_count && (*es->undo_text && (e == es->undo_position))) {
3302 /* undo-buffer is extended to the left */
3303 EDIT_MakeUndoFit(es, utl + e - s);
3304 for (p = es->undo_text + utl ; p >= es->undo_text ; p--)
3305 p[e - s] = p[0];
3306 for (i = 0 , p = es->undo_text ; i < e - s ; i++)
3307 p[i] = buf[i];
3308 es->undo_position = s;
3309 } else {
3310 /* new undo-buffer */
3311 EDIT_MakeUndoFit(es, e - s);
3312 memcpy(es->undo_text, buf, (e - s)*sizeof(WCHAR));
3313 es->undo_text[e - s] = 0; /* ensure 0 termination */
3314 es->undo_position = s;
3315 }
3316 /* any deletion makes the old insertion-undo invalid */
3317 es->undo_insert_count = 0;
3318 } else
3319 EDIT_EM_EmptyUndoBuffer(es);
3320 }
3321 if (strl) {
3322 if (can_undo) {
3323 if ((s == es->undo_position) ||
3324 ((es->undo_insert_count) &&
3325 (s == es->undo_position + es->undo_insert_count)))
3326 /*
3327 * insertion is new and at delete position or
3328 * an extension to either left or right
3329 */
3330 es->undo_insert_count += strl;
3331 else {
3332 /* new insertion undo */
3333 es->undo_position = s;
3334 es->undo_insert_count = strl;
3335 /* new insertion makes old delete-buffer invalid */
3336 *es->undo_text = '\0';
3337 }
3338 } else
3339 EDIT_EM_EmptyUndoBuffer(es);
3340 }
3341
3342 if (bufl)
3343 HeapFree(GetProcessHeap(), 0, buf);
3344
3345 s += strl;
3346
3347 /* If text has been deleted and we're right or center aligned then scroll rightward */
3348 if (es->style & (ES_RIGHT | ES_CENTER))
3349 {
3350 INT delta = strl - abs(es->selection_end - es->selection_start);
3351
3352 if (delta < 0 && es->x_offset)
3353 {
3354 if (abs(delta) > es->x_offset)
3355 es->x_offset = 0;
3356 else
3357 es->x_offset += delta;
3358 }
3359 }
3360
3361 EDIT_EM_SetSel(es, s, s, FALSE);
3362 es->flags |= EF_MODIFIED;
3363 if (send_update) es->flags |= EF_UPDATE;
3364 if (hrgn)
3365 {
3366 EDIT_UpdateTextRegion(es, hrgn, TRUE);
3367 DeleteObject(hrgn);
3368 }
3369 else
3370 EDIT_UpdateText(es, NULL, TRUE);
3371
3372 EDIT_EM_ScrollCaret(es);
3373
3374 /* force scroll info update */
3375 EDIT_UpdateScrollInfo(es);
3376
3377
3378 if(send_update || (es->flags & EF_UPDATE))
3379 {
3380 es->flags &= ~EF_UPDATE;
3381 EDIT_NOTIFY_PARENT(es, EN_CHANGE);
3382 }
3383 }
3384
3385
3386 /*********************************************************************
3387 *
3388 * EM_SCROLL
3389 *
3390 */
3391 static LRESULT EDIT_EM_Scroll(EDITSTATE *es, INT action)
3392 {
3393 INT dy;
3394
3395 if (!(es->style & ES_MULTILINE))
3396 return (LRESULT)FALSE;
3397
3398 dy = 0;
3399
3400 switch (action) {
3401 case SB_LINEUP:
3402 if (es->y_offset)
3403 dy = -1;
3404 break;
3405 case SB_LINEDOWN:
3406 if (es->y_offset < es->line_count - 1)
3407 dy = 1;
3408 break;
3409 case SB_PAGEUP:
3410 if (es->y_offset)
3411 dy = -(es->format_rect.bottom - es->format_rect.top) / es->line_height;
3412 break;
3413 case SB_PAGEDOWN:
3414 if (es->y_offset < es->line_count - 1)
3415 dy = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3416 break;
3417 default:
3418 return (LRESULT)FALSE;
3419 }
3420 if (dy) {
3421 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3422 /* check if we are going to move too far */
3423 if(es->y_offset + dy > es->line_count - vlc)
3424 dy = es->line_count - vlc - es->y_offset;
3425
3426 /* Notification is done in EDIT_EM_LineScroll */
3427 if(dy)
3428 EDIT_EM_LineScroll(es, 0, dy);
3429 }
3430 return MAKELONG((INT16)dy, (BOOL16)TRUE);
3431 }
3432
3433
3434 /*********************************************************************
3435 *
3436 * EM_SCROLLCARET
3437 *
3438 */
3439 static void EDIT_EM_ScrollCaret(EDITSTATE *es)
3440 {
3441 if (es->style & ES_MULTILINE) {
3442 INT l;
3443 INT li;
3444 INT vlc;
3445 INT ww;
3446 INT cw = es->char_width;
3447 INT x;
3448 INT dy = 0;
3449 INT dx = 0;
3450
3451 l = EDIT_EM_LineFromChar(es, es->selection_end);
3452 li = EDIT_EM_LineIndex(es, l);
3453 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP));
3454 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3455 if (l >= es->y_offset + vlc)
3456 dy = l - vlc + 1 - es->y_offset;
3457 if (l < es->y_offset)
3458 dy = l - es->y_offset;
3459 ww = es->format_rect.right - es->format_rect.left;
3460 if (x < es->format_rect.left)
3461 dx = x - es->format_rect.left - ww / HSCROLL_FRACTION / cw * cw;
3462 if (x > es->format_rect.right)
3463 dx = x - es->format_rect.left - (HSCROLL_FRACTION - 1) * ww / HSCROLL_FRACTION / cw * cw;
3464 if (dy || dx || (es->y_offset && (es->line_count - es->y_offset < vlc)))
3465 {
3466 /* check if we are going to move too far */
3467 if(es->x_offset + dx + ww > es->text_width)
3468 dx = es->text_width - ww - es->x_offset;
3469 if(dx || dy || (es->y_offset && (es->line_count - es->y_offset < vlc)))
3470 EDIT_EM_LineScroll_internal(es, dx, dy);
3471 }
3472 } else {
3473 INT x;
3474 INT goal;
3475 INT format_width;
3476
3477 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3478 format_width = es->format_rect.right - es->format_rect.left;
3479 if (x < es->format_rect.left) {
3480 goal = es->format_rect.left + format_width / HSCROLL_FRACTION;
3481 do {
3482 es->x_offset--;
3483 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3484 } while ((x < goal) && es->x_offset);
3485 /* FIXME: use ScrollWindow() somehow to improve performance */
3486 EDIT_UpdateText(es, NULL, TRUE);
3487 } else if (x > es->format_rect.right) {
3488 INT x_last;
3489 INT len = get_text_length(es);
3490 goal = es->format_rect.right - format_width / HSCROLL_FRACTION;
3491 do {
3492 es->x_offset++;
3493 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3494 x_last = (short)LOWORD(EDIT_EM_PosFromChar(es, len, FALSE));
3495 } while ((x > goal) && (x_last > es->format_rect.right));
3496 /* FIXME: use ScrollWindow() somehow to improve performance */
3497 EDIT_UpdateText(es, NULL, TRUE);
3498 }
3499 }
3500
3501 if(es->flags & EF_FOCUSED)
3502 EDIT_SetCaretPos(es, es->selection_end, es->flags & EF_AFTER_WRAP);
3503 }
3504
3505
3506 /*********************************************************************
3507 *
3508 * EM_SETHANDLE
3509 *
3510 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
3511 *
3512 */
3513 static void EDIT_EM_SetHandle(EDITSTATE *es, HLOCAL hloc)
3514 {
3515 if (!(es->style & ES_MULTILINE))
3516 return;
3517
3518 if (!hloc) {
3519 WARN("called with NULL handle\n");
3520 return;
3521 }
3522
3523 EDIT_UnlockBuffer(es, TRUE);
3524
3525 if(es->hloc16)
3526 {
3527 STACK16FRAME* stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
3528 HANDLE16 oldDS = stack16->ds;
3529
3530 stack16->ds = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
3531 LocalFree16(es->hloc16);
3532 stack16->ds = oldDS;
3533 es->hloc16 = 0;
3534 }
3535
3536 if(es->is_unicode)
3537 {
3538 if(es->hloc32A)
3539 {
3540 LocalFree(es->hloc32A);
3541 es->hloc32A = NULL;
3542 }
3543 es->hloc32W = hloc;
3544 }
3545 else
3546 {
3547 INT countW, countA;
3548 HLOCAL hloc32W_new;
3549 WCHAR *textW;
3550 CHAR *textA;
3551
3552 countA = LocalSize(hloc);
3553 textA = LocalLock(hloc);
3554 countW = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
3555 if(!(hloc32W_new = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, countW * sizeof(WCHAR))))
3556 {
3557 ERR("Could not allocate new unicode buffer\n");
3558 return;
3559 }
3560 textW = LocalLock(hloc32W_new);
3561 MultiByteToWideChar(CP_ACP, 0, textA, countA, textW, countW);
3562 LocalUnlock(hloc32W_new);
3563 LocalUnlock(hloc);
3564
3565 if(es->hloc32W)
3566 LocalFree(es->hloc32W);
3567
3568 es->hloc32W = hloc32W_new;
3569 es->hloc32A = hloc;
3570 }
3571
3572 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
3573
3574 es->flags |= EF_APP_HAS_HANDLE;
3575 EDIT_LockBuffer(es);
3576
3577 es->x_offset = es->y_offset = 0;
3578 es->selection_start = es->selection_end = 0;
3579 EDIT_EM_EmptyUndoBuffer(es);
3580 es->flags &= ~EF_MODIFIED;
3581 es->flags &= ~EF_UPDATE;
3582 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
3583 EDIT_UpdateText(es, NULL, TRUE);
3584 EDIT_EM_ScrollCaret(es);
3585 /* force scroll info update */
3586 EDIT_UpdateScrollInfo(es);
3587 }
3588
3589
3590 /*********************************************************************
3591 *
3592 * EM_SETHANDLE16
3593 *
3594 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
3595 *
3596 */
3597 static void EDIT_EM_SetHandle16(EDITSTATE *es, HLOCAL16 hloc)
3598 {
3599 STACK16FRAME* stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
3600 HINSTANCE16 hInstance = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
3601 HANDLE16 oldDS = stack16->ds;
3602 INT countW, countA;
3603 HLOCAL hloc32W_new;
3604 WCHAR *textW;
3605 CHAR *textA;
3606
3607 if (!(es->style & ES_MULTILINE))
3608 return;
3609
3610 if (!hloc) {
3611 WARN("called with NULL handle\n");
3612 return;
3613 }
3614
3615 EDIT_UnlockBuffer(es, TRUE);
3616
3617 if(es->hloc32A)
3618 {
3619 LocalFree(es->hloc32A);
3620 es->hloc32A = NULL;
3621 }
3622
3623 stack16->ds = hInstance;
3624 countA = LocalSize16(hloc);
3625 textA = MapSL(LocalLock16(hloc));
3626 countW = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
3627 if(!(hloc32W_new = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, countW * sizeof(WCHAR))))
3628 {
3629 ERR("Could not allocate new unicode buffer\n");
3630 return;
3631 }
3632 textW = LocalLock(hloc32W_new);
3633 MultiByteToWideChar(CP_ACP, 0, textA, countA, textW, countW);
3634 LocalUnlock(hloc32W_new);
3635 LocalUnlock16(hloc);
3636 stack16->ds = oldDS;
3637
3638 if(es->hloc32W)
3639 LocalFree(es->hloc32W);
3640
3641 es->hloc32W = hloc32W_new;
3642 es->hloc16 = hloc;
3643
3644 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
3645
3646 es->flags |= EF_APP_HAS_HANDLE;
3647 EDIT_LockBuffer(es);
3648
3649 es->x_offset = es->y_offset = 0;
3650 es->selection_start = es->selection_end = 0;
3651 EDIT_EM_EmptyUndoBuffer(es);
3652 es->flags &= ~EF_MODIFIED;
3653 es->flags &= ~EF_UPDATE;
3654 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
3655 EDIT_UpdateText(es, NULL, TRUE);
3656 EDIT_EM_ScrollCaret(es);
3657 /* force scroll info update */
3658 EDIT_UpdateScrollInfo(es);
3659 }
3660
3661
3662 /*********************************************************************
3663 *
3664 * EM_SETLIMITTEXT
3665 *
3666 * NOTE: this version currently implements WinNT limits
3667 *
3668 */
3669 static void EDIT_EM_SetLimitText(EDITSTATE *es, UINT limit)
3670 {
3671 if (!limit) limit = ~0u;
3672 if (!(es->style & ES_MULTILINE)) limit = min(limit, 0x7ffffffe);
3673 es->buffer_limit = limit;
3674 }
3675
3676
3677 /*********************************************************************
3678 *
3679 * EM_SETMARGINS
3680 *
3681 * EC_USEFONTINFO is used as a left or right value i.e. lParam and not as an
3682 * action wParam despite what the docs say. EC_USEFONTINFO calculates the
3683 * margin according to the textmetrics of the current font.
3684 *
3685 * FIXME - With TrueType or vector fonts EC_USEFONTINFO currently sets one third
3686 * of the char's width as the margin, but this is not how Windows handles this.
3687 * For all other fonts Windows sets the margins to zero.
3688 *
3689 * FIXME - When EC_USEFONTINFO is used the margins only change if the
3690 * edit control is equal to or larger than a certain size.
3691 * Interestingly if one subtracts both the left and right margins from
3692 * this size one always seems to get an even number. The extents of
3693 * the (four character) string "'**'" match this quite closely, so
3694 * we'll use this until we come up with a better idea.
3695 */
3696 static int calc_min_set_margin_size(HDC dc, INT left, INT right)
3697 {
3698 WCHAR magic_string[] = {'\'','*','*','\'', 0};
3699 SIZE sz;
3700
3701 GetTextExtentPointW(dc, magic_string, sizeof(magic_string)/sizeof(WCHAR) - 1, &sz);
3702 return sz.cx + left + right;
3703 }
3704
3705 static void EDIT_EM_SetMargins(EDITSTATE *es, INT action,
3706 WORD left, WORD right, BOOL repaint)
3707 {
3708 TEXTMETRICW tm;
3709 INT default_left_margin = 0; /* in pixels */
3710 INT default_right_margin = 0; /* in pixels */
3711
3712 /* Set the default margins depending on the font */
3713 if (es->font && (left == EC_USEFONTINFO || right == EC_USEFONTINFO)) {
3714 HDC dc = GetDC(es->hwndSelf);
3715 HFONT old_font = SelectObject(dc, es->font);
3716 GetTextMetricsW(dc, &tm);
3717 /* The default margins are only non zero for TrueType or Vector fonts */
3718 if (tm.tmPitchAndFamily & ( TMPF_VECTOR | TMPF_TRUETYPE )) {
3719 int min_size;
3720 RECT rc;
3721 /* This must be calculated more exactly! But how? */
3722 default_left_margin = tm.tmAveCharWidth / 2;
3723 default_right_margin = tm.tmAveCharWidth / 2;
3724 min_size = calc_min_set_margin_size(dc, default_left_margin, default_right_margin);
3725 GetClientRect(es->hwndSelf, &rc);
3726 if(rc.right - rc.left < min_size) {
3727 default_left_margin = es->left_margin;
3728 default_right_margin = es->right_margin;
3729 }
3730 }
3731 SelectObject(dc, old_font);
3732 ReleaseDC(es->hwndSelf, dc);
3733 }
3734
3735 if (action & EC_LEFTMARGIN) {
3736 es->format_rect.left -= es->left_margin;
3737 if (left != EC_USEFONTINFO)
3738 es->left_margin = left;
3739 else
3740 es->left_margin = default_left_margin;
3741 es->format_rect.left += es->left_margin;
3742 }
3743
3744 if (action & EC_RIGHTMARGIN) {
3745 es->format_rect.right += es->right_margin;
3746 if (right != EC_USEFONTINFO)
3747 es->right_margin = right;
3748 else
3749 es->right_margin = default_right_margin;
3750 es->format_rect.right -= es->right_margin;
3751 }
3752
3753 if (action & (EC_LEFTMARGIN | EC_RIGHTMARGIN)) {
3754 EDIT_AdjustFormatRect(es);
3755 if (repaint) EDIT_UpdateText(es, NULL, TRUE);
3756 }
3757
3758 TRACE("left=%d, right=%d\n", es->left_margin, es->right_margin);
3759 }
3760
3761
3762 /*********************************************************************
3763 *
3764 * EM_SETPASSWORDCHAR
3765 *
3766 */
3767 static void EDIT_EM_SetPasswordChar(EDITSTATE *es, WCHAR c)
3768 {
3769 LONG style;
3770
3771 if (es->style & ES_MULTILINE)
3772 return;
3773
3774 if (es->password_char == c)
3775 return;
3776
3777 style = GetWindowLongW( es->hwndSelf, GWL_STYLE );
3778 es->password_char = c;
3779 if (c) {
3780 SetWindowLongW( es->hwndSelf, GWL_STYLE, style | ES_PASSWORD );
3781 es->style |= ES_PASSWORD;
3782 } else {
3783 SetWindowLongW( es->hwndSelf, GWL_STYLE, style & ~ES_PASSWORD );
3784 es->style &= ~ES_PASSWORD;
3785 }
3786 EDIT_UpdateText(es, NULL, TRUE);
3787 }
3788
3789
3790 /*********************************************************************
3791 *
3792 * EDIT_EM_SetSel
3793 *
3794 * note: unlike the specs say: the order of start and end
3795 * _is_ preserved in Windows. (i.e. start can be > end)
3796 * In other words: this handler is OK
3797 *
3798 */
3799 static void EDIT_EM_SetSel(EDITSTATE *es, UINT start, UINT end, BOOL after_wrap)
3800 {
3801 UINT old_start = es->selection_start;
3802 UINT old_end = es->selection_end;
3803 UINT len = get_text_length(es);
3804
3805 if (start == (UINT)-1) {
3806 start = es->selection_end;
3807 end = es->selection_end;
3808 } else {
3809 start = min(start, len);
3810 end = min(end, len);
3811 }
3812 es->selection_start = start;
3813 es->selection_end = end;
3814 if (after_wrap)
3815 es->flags |= EF_AFTER_WRAP;
3816 else
3817 es->flags &= ~EF_AFTER_WRAP;
3818 /* Compute the necessary invalidation region. */
3819 /* Note that we don't need to invalidate regions which have
3820 * "never" been selected, or those which are "still" selected.
3821 * In fact, every time we hit a selection boundary, we can
3822 * *toggle* whether we need to invalidate. Thus we can optimize by
3823 * *sorting* the interval endpoints. Let's assume that we sort them
3824 * in this order:
3825 * start <= end <= old_start <= old_end
3826 * Knuth 5.3.1 (p 183) asssures us that this can be done optimally
3827 * in 5 comparisons; ie it's impossible to do better than the
3828 * following: */
3829 ORDER_UINT(end, old_end);
3830 ORDER_UINT(start, old_start);
3831 ORDER_UINT(old_start, old_end);
3832 ORDER_UINT(start, end);
3833 /* Note that at this point 'end' and 'old_start' are not in order, but
3834 * start is definitely the min. and old_end is definitely the max. */
3835 if (end != old_start)
3836 {
3837 /*
3838 * One can also do
3839 * ORDER_UINT32(end, old_start);
3840 * EDIT_InvalidateText(es, start, end);
3841 * EDIT_InvalidateText(es, old_start, old_end);
3842 * in place of the following if statement.
3843 * (That would complete the optimal five-comparison four-element sort.)
3844 */
3845 if (old_start > end )
3846 {
3847 EDIT_InvalidateText(es, start, end);
3848 EDIT_InvalidateText(es, old_start, old_end);
3849 }
3850 else
3851 {
3852 EDIT_InvalidateText(es, start, old_start);
3853 EDIT_InvalidateText(es, end, old_end);
3854 }
3855 }
3856 else EDIT_InvalidateText(es, start, old_end);
3857 }
3858
3859
3860 /*********************************************************************
3861 *
3862 * EM_SETTABSTOPS
3863 *
3864 */
3865 static BOOL EDIT_EM_SetTabStops(EDITSTATE *es, INT count, const INT *tabs)
3866 {
3867 if (!(es->style & ES_MULTILINE))
3868 return FALSE;
3869 HeapFree(GetProcessHeap(), 0, es->tabs);
3870 es->tabs_count = count;
3871 if (!count)
3872 es->tabs = NULL;
3873 else {
3874 es->tabs = HeapAlloc(GetProcessHeap(), 0, count * sizeof(INT));
3875 memcpy(es->tabs, tabs, count * sizeof(INT));
3876 }
3877 return TRUE;
3878 }
3879
3880
3881 /*********************************************************************
3882 *
3883 * EM_SETTABSTOPS16
3884 *
3885 */
3886 static BOOL EDIT_EM_SetTabStops16(EDITSTATE *es, INT count, const INT16 *tabs)
3887 {
3888 if (!(es->style & ES_MULTILINE))
3889 return FALSE;
3890 HeapFree(GetProcessHeap(), 0, es->tabs);
3891 es->tabs_count = count;
3892 if (!count)
3893 es->tabs = NULL;
3894 else {
3895 INT i;
3896 es->tabs = HeapAlloc(GetProcessHeap(), 0, count * sizeof(INT));
3897 for (i = 0 ; i < count ; i++)
3898 es->tabs[i] = *tabs++;
3899 }
3900 return TRUE;
3901 }
3902
3903
3904 /*********************************************************************
3905 *
3906 * EM_SETWORDBREAKPROC
3907 *
3908 */
3909 static void EDIT_EM_SetWordBreakProc(EDITSTATE *es, void *wbp)
3910 {
3911 if (es->word_break_proc == wbp)
3912 return;
3913
3914 es->word_break_proc = wbp;
3915 es->word_break_proc16 = NULL;
3916
3917 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
3918 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
3919 EDIT_UpdateText(es, NULL, TRUE);
3920 }
3921 }
3922
3923
3924 /*********************************************************************
3925 *
3926 * EM_SETWORDBREAKPROC16
3927 *
3928 */
3929 static void EDIT_EM_SetWordBreakProc16(EDITSTATE *es, EDITWORDBREAKPROC16 wbp)
3930 {
3931 if (es->word_break_proc16 == wbp)
3932 return;
3933
3934 es->word_break_proc = NULL;
3935 es->word_break_proc16 = wbp;
3936 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
3937 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
3938 EDIT_UpdateText(es, NULL, TRUE);
3939 }
3940 }
3941
3942
3943 /*********************************************************************
3944 *
3945 * EM_UNDO / WM_UNDO
3946 *
3947 */
3948 static BOOL EDIT_EM_Undo(EDITSTATE *es)
3949 {
3950 INT ulength;
3951 LPWSTR utext;
3952
3953 /* As per MSDN spec, for a single-line edit control,
3954 the return value is always TRUE */
3955 if( es->style & ES_READONLY )
3956 return !(es->style & ES_MULTILINE);
3957
3958 ulength = strlenW(es->undo_text);
3959
3960 utext = HeapAlloc(GetProcessHeap(), 0, (ulength + 1) * sizeof(WCHAR));
3961
3962 strcpyW(utext, es->undo_text);
3963
3964 TRACE("before UNDO:insertion length = %d, deletion buffer = %s\n",
3965 es->undo_insert_count, debugstr_w(utext));
3966
3967 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
3968 EDIT_EM_EmptyUndoBuffer(es);
3969 EDIT_EM_ReplaceSel(es, TRUE, utext, TRUE, TRUE);
3970 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
3971 /* send the notification after the selection start and end are set */
3972 EDIT_NOTIFY_PARENT(es, EN_CHANGE);
3973 EDIT_EM_ScrollCaret(es);
3974 HeapFree(GetProcessHeap(), 0, utext);
3975
3976 TRACE("after UNDO:insertion length = %d, deletion buffer = %s\n",
3977 es->undo_insert_count, debugstr_w(es->undo_text));
3978 return TRUE;
3979 }
3980
3981
3982 /* Helper function for WM_CHAR
3983 *
3984 * According to an MSDN blog article titled "Just because you're a control
3985 * doesn't mean that you're necessarily inside a dialog box," multiline edit
3986 * controls without ES_WANTRETURN would attempt to detect whether it is inside
3987 * a dialog box or not.
3988 */
3989 static BOOL EDIT_IsInsideDialog(EDITSTATE *es)
3990 {
3991 WND *pParent;
3992 BOOL r = FALSE;
3993
3994 if (es->hwndParent)
3995 {
3996 pParent = WIN_GetPtr(es->hwndParent);
3997 if (pParent && pParent != WND_OTHER_PROCESS && pParent != WND_DESKTOP)
3998 {
3999 if (pParent->flags & WIN_ISDIALOG)
4000 r = TRUE;
4001 WIN_ReleasePtr(pParent);
4002 }
4003 }
4004 return r;
4005 }
4006
4007
4008 /*********************************************************************
4009 *
4010 * WM_CHAR
4011 *
4012 */
4013 static LRESULT EDIT_WM_Char(EDITSTATE *es, WCHAR c)
4014 {
4015 BOOL control;
4016
4017 control = GetKeyState(VK_CONTROL) & 0x8000;
4018
4019 switch (c) {
4020 case '\r':
4021 /* If it's not a multiline edit box, it would be ignored below.
4022 * For multiline edit without ES_WANTRETURN, we have to make a
4023 * special case.
4024 */
4025 if ((es->style & ES_MULTILINE) && !(es->style & ES_WANTRETURN))
4026 if (EDIT_IsInsideDialog(es))
4027 break;
4028 case '\n':
4029 if (es->style & ES_MULTILINE) {
4030 if (es->style & ES_READONLY) {
4031 EDIT_MoveHome(es, FALSE, FALSE);
4032 EDIT_MoveDown_ML(es, FALSE);
4033 } else {
4034 static const WCHAR cr_lfW[] = {'\r','\n',0};
4035 EDIT_EM_ReplaceSel(es, TRUE, cr_lfW, TRUE, TRUE);
4036 }
4037 }
4038 break;
4039 case '\t':
4040 if ((es->style & ES_MULTILINE) && !(es->style & ES_READONLY))
4041 {
4042 static const WCHAR tabW[] = {'\t',0};
4043 if (EDIT_IsInsideDialog(es))
4044 break;
4045 EDIT_EM_ReplaceSel(es, TRUE, tabW, TRUE, TRUE);
4046 }
4047 break;
4048 case VK_BACK:
4049 if (!(es->style & ES_READONLY) && !control) {
4050 if (es->selection_start != es->selection_end)
4051 EDIT_WM_Clear(es);
4052 else {
4053 /* delete character left of caret */
4054 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4055 EDIT_MoveBackward(es, TRUE);
4056 EDIT_WM_Clear(es);
4057 }
4058 }
4059 break;
4060 case 0x03: /* ^C */
4061 if (!(es->style & ES_PASSWORD))
4062 SendMessageW(es->hwndSelf, WM_COPY, 0, 0);
4063 break;
4064 case 0x16: /* ^V */
4065 if (!(es->style & ES_READONLY))
4066 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
4067 break;
4068 case 0x18: /* ^X */
4069 if (!((es->style & ES_READONLY) || (es->style & ES_PASSWORD)))
4070 SendMessageW(es->hwndSelf, WM_CUT, 0, 0);
4071 break;
4072 case 0x1A: /* ^Z */
4073 if (!(es->style & ES_READONLY))
4074 SendMessageW(es->hwndSelf, WM_UNDO, 0, 0);
4075 break;
4076
4077 default:
4078 /*If Edit control style is ES_NUMBER allow users to key in only numeric values*/
4079 if( (es->style & ES_NUMBER) && !( c >= '0' && c <= '9') )
4080 break;
4081
4082 if (!(es->style & ES_READONLY) && (c >= ' ') && (c != 127)) {
4083 WCHAR str[2];
4084 str[0] = c;
4085 str[1] = '\0';
4086 EDIT_EM_ReplaceSel(es, TRUE, str, TRUE, TRUE);
4087 }
4088 break;
4089 }
4090 return 1;
4091 }
4092
4093
4094 /*********************************************************************
4095 *
4096 * WM_COMMAND
4097 *
4098 */
4099 static void EDIT_WM_Command(EDITSTATE *es, INT code, INT id, HWND control)
4100 {
4101 if (code || control)
4102 return;
4103
4104 switch (id) {
4105 case EM_UNDO:
4106 EDIT_EM_Undo(es);
4107 break;
4108 case WM_CUT:
4109 EDIT_WM_Cut(es);
4110 break;
4111 case WM_COPY:
4112 EDIT_WM_Copy(es);
4113 break;
4114 case WM_PASTE:
4115 EDIT_WM_Paste(es);
4116 break;
4117 case WM_CLEAR:
4118 EDIT_WM_Clear(es);
4119 break;
4120 case EM_SETSEL:
4121 EDIT_EM_SetSel(es, 0, (UINT)-1, FALSE);
4122 EDIT_EM_ScrollCaret(es);
4123 break;
4124 default:
4125 ERR("unknown menu item, please report\n");
4126 break;
4127 }
4128 }
4129
4130
4131 /*********************************************************************
4132 *
4133 * WM_CONTEXTMENU
4134 *
4135 * Note: the resource files resource/sysres_??.rc cannot define a
4136 * single popup menu. Hence we use a (dummy) menubar
4137 * containing the single popup menu as its first item.
4138 *
4139 * FIXME: the message identifiers have been chosen arbitrarily,
4140 * hence we use MF_BYPOSITION.
4141 * We might as well use the "real" values (anybody knows ?)
4142 * The menu definition is in resources/sysres_??.rc.
4143 * Once these are OK, we better use MF_BYCOMMAND here
4144 * (as we do in EDIT_WM_Command()).
4145 *
4146 */
4147 static void EDIT_WM_ContextMenu(EDITSTATE *es, INT x, INT y)
4148 {
4149 HMENU menu = LoadMenuA(user32_module, "EDITMENU");
4150 HMENU popup = GetSubMenu(menu, 0);
4151 UINT start = es->selection_start;
4152 UINT end = es->selection_end;
4153
4154 ORDER_UINT(start, end);
4155
4156 /* undo */
4157 EnableMenuItem(popup, 0, MF_BYPOSITION | (EDIT_EM_CanUndo(es) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
4158 /* cut */
4159 EnableMenuItem(popup, 2, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
4160 /* copy */
4161 EnableMenuItem(popup, 3, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) ? MF_ENABLED : MF_GRAYED));
4162 /* paste */
4163 EnableMenuItem(popup, 4, MF_BYPOSITION | (IsClipboardFormatAvailable(CF_UNICODETEXT) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
4164 /* delete */
4165 EnableMenuItem(popup, 5, MF_BYPOSITION | ((end - start) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
4166 /* select all */
4167 EnableMenuItem(popup, 7, MF_BYPOSITION | (start || (end != get_text_length(es)) ? MF_ENABLED : MF_GRAYED));
4168
4169 if (x == -1 && y == -1) /* passed via VK_APPS press/release */
4170 {
4171 RECT rc;
4172 /* Windows places the menu at the edit's center in this case */
4173 GetClientRect(es->hwndSelf, &rc);
4174 MapWindowPoints(es->hwndSelf, 0, (POINT *)&rc, 2);
4175 x = rc.left + (rc.right - rc.left) / 2;
4176 y = rc.top + (rc.bottom - rc.top) / 2;
4177 }
4178
4179 TrackPopupMenu(popup, TPM_LEFTALIGN | TPM_RIGHTBUTTON, x, y, 0, es->hwndSelf, NULL);
4180 DestroyMenu(menu);
4181 }
4182
4183
4184 /*********************************************************************
4185 *
4186 * WM_COPY
4187 *
4188 */
4189 static void EDIT_WM_Copy(EDITSTATE *es)
4190 {
4191 INT s = min(es->selection_start, es->selection_end);
4192 INT e = max(es->selection_start, es->selection_end);
4193 HGLOBAL hdst;
4194 LPWSTR dst;
4195 DWORD len;
4196
4197 if (e == s) return;
4198
4199 len = e - s;
4200 hdst = GlobalAlloc(GMEM_MOVEABLE | GMEM_DDESHARE, (len + 1) * sizeof(WCHAR));
4201 dst = GlobalLock(hdst);
4202 memcpy(dst, es->text + s, len * sizeof(WCHAR));
4203 dst[len] = 0; /* ensure 0 termination */
4204 TRACE("%s\n", debugstr_w(dst));
4205 GlobalUnlock(hdst);
4206 OpenClipboard(es->hwndSelf);
4207 EmptyClipboard();
4208 SetClipboardData(CF_UNICODETEXT, hdst);
4209 CloseClipboard();
4210 }
4211
4212
4213 /*********************************************************************
4214 *
4215 * WM_CREATE
4216 *
4217 */
4218 static LRESULT EDIT_WM_Create(EDITSTATE *es, LPCWSTR name)
4219 {
4220 RECT clientRect;
4221
4222 TRACE("%s\n", debugstr_w(name));
4223 /*
4224 * To initialize some final structure members, we call some helper
4225 * functions. However, since the EDITSTATE is not consistent (i.e.
4226 * not fully initialized), we should be very careful which
4227 * functions can be called, and in what order.
4228 */
4229 EDIT_WM_SetFont(es, 0, FALSE);
4230 EDIT_EM_EmptyUndoBuffer(es);
4231
4232 /* We need to calculate the format rect
4233 (applications may send EM_SETMARGINS before the control gets visible) */
4234 GetClientRect(es->hwndSelf, &clientRect);
4235 EDIT_SetRectNP(es, &clientRect);
4236
4237 if (name && *name) {
4238 EDIT_EM_ReplaceSel(es, FALSE, name, FALSE, FALSE);
4239 /* if we insert text to the editline, the text scrolls out
4240 * of the window, as the caret is placed after the insert
4241 * pos normally; thus we reset es->selection... to 0 and
4242 * update caret
4243 */
4244 es->selection_start = es->selection_end = 0;
4245 /* Adobe Photoshop does NOT like this. and MSDN says that EN_CHANGE
4246 * Messages are only to be sent when the USER does something to
4247 * change the contents. So I am removing this EN_CHANGE
4248 *
4249 * EDIT_NOTIFY_PARENT(es, EN_CHANGE);
4250 */
4251 EDIT_EM_ScrollCaret(es);
4252 }
4253 /* force scroll info update */
4254 EDIT_UpdateScrollInfo(es);
4255 /* The rule seems to return 1 here for success */
4256 /* Power Builder masked edit controls will crash */
4257 /* if not. */
4258 /* FIXME: is that in all cases so ? */
4259 return 1;
4260 }
4261
4262
4263 /*********************************************************************
4264 *
4265 * WM_DESTROY
4266 *
4267 */
4268 static LRESULT EDIT_WM_Destroy(EDITSTATE *es)
4269 {
4270 LINEDEF *pc, *pp;
4271
4272 if (es->hloc32W) {
4273 while (LocalUnlock(es->hloc32W)) ;
4274 LocalFree(es->hloc32W);
4275 }
4276 if (es->hloc32A) {
4277 while (LocalUnlock(es->hloc32A)) ;
4278 LocalFree(es->hloc32A);
4279 }
4280 if (es->hloc16) {
4281 STACK16FRAME* stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
4282 HANDLE16 oldDS = stack16->ds;
4283
4284 stack16->ds = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
4285 while (LocalUnlock16(es->hloc16)) ;
4286 LocalFree16(es->hloc16);
4287 stack16->ds = oldDS;
4288 }
4289
4290 pc = es->first_line_def;
4291 while (pc)
4292 {
4293 pp = pc->next;
4294 HeapFree(GetProcessHeap(), 0, pc);
4295 pc = pp;
4296 }
4297
4298 SetWindowLongPtrW( es->hwndSelf, 0, 0 );
4299 HeapFree(GetProcessHeap(), 0, es);
4300
4301 return 0;
4302 }
4303
4304
4305 /*********************************************************************
4306 *
4307 * WM_GETTEXT
4308 *
4309 */
4310 static INT EDIT_WM_GetText(const EDITSTATE *es, INT count, LPWSTR dst, BOOL unicode)
4311 {
4312 if(!count) return 0;
4313
4314 if(unicode)
4315 {
4316 lstrcpynW(dst, es->text, count);
4317 return strlenW(dst);
4318 }
4319 else
4320 {
4321 LPSTR textA = (LPSTR)dst;
4322 if (!WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, count, NULL, NULL))
4323 textA[count - 1] = 0; /* ensure 0 termination */
4324 return strlen(textA);
4325 }
4326 }
4327
4328 /*********************************************************************
4329 *
4330 * WM_HSCROLL
4331 *
4332 */
4333 static LRESULT EDIT_WM_HScroll(EDITSTATE *es, INT action, INT pos)
4334 {
4335 INT dx;
4336 INT fw;
4337
4338 if (!(es->style & ES_MULTILINE))
4339 return 0;
4340
4341 if (!(es->style & ES_AUTOHSCROLL))
4342 return 0;
4343
4344 dx = 0;
4345 fw = es->format_rect.right - es->format_rect.left;
4346 switch (action) {
4347 case SB_LINELEFT:
4348 TRACE("SB_LINELEFT\n");
4349 if (es->x_offset)
4350 dx = -es->char_width;
4351 break;
4352 case SB_LINERIGHT:
4353 TRACE("SB_LINERIGHT\n");
4354 if (es->x_offset < es->text_width)
4355 dx = es->char_width;
4356 break;
4357 case SB_PAGELEFT:
4358 TRACE("SB_PAGELEFT\n");
4359 if (es->x_offset)
4360 dx = -fw / HSCROLL_FRACTION / es->char_width * es->char_width;
4361 break;
4362 case SB_PAGERIGHT:
4363 TRACE("SB_PAGERIGHT\n");
4364 if (es->x_offset < es->text_width)
4365 dx = fw / HSCROLL_FRACTION / es->char_width * es->char_width;
4366 break;
4367 case SB_LEFT:
4368 TRACE("SB_LEFT\n");
4369 if (es->x_offset)
4370 dx = -es->x_offset;
4371 break;
4372 case SB_RIGHT:
4373 TRACE("SB_RIGHT\n");
4374 if (es->x_offset < es->text_width)
4375 dx = es->text_width - es->x_offset;
4376 break;
4377 case SB_THUMBTRACK:
4378 TRACE("SB_THUMBTRACK %d\n", pos);
4379 es->flags |= EF_HSCROLL_TRACK;
4380 if(es->style & WS_HSCROLL)
4381 dx = pos - es->x_offset;
4382 else
4383 {
4384 INT fw, new_x;
4385 /* Sanity check */
4386 if(pos < 0 || pos > 100) return 0;
4387 /* Assume default scroll range 0-100 */
4388 fw = es->format_rect.right - es->format_rect.left;
4389 new_x = pos * (es->text_width - fw) / 100;
4390 dx = es->text_width ? (new_x - es->x_offset) : 0;
4391 }
4392 break;
4393 case SB_THUMBPOSITION:
4394 TRACE("SB_THUMBPOSITION %d\n", pos);
4395 es->flags &= ~EF_HSCROLL_TRACK;
4396 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
4397 dx = pos - es->x_offset;
4398 else
4399 {
4400 INT fw, new_x;
4401 /* Sanity check */
4402 if(pos < 0 || pos > 100) return 0;
4403 /* Assume default scroll range 0-100 */
4404 fw = es->format_rect.right - es->format_rect.left;
4405 new_x = pos * (es->text_width - fw) / 100;
4406 dx = es->text_width ? (new_x - es->x_offset) : 0;
4407 }
4408 if (!dx) {
4409 /* force scroll info update */
4410 EDIT_UpdateScrollInfo(es);
4411 EDIT_NOTIFY_PARENT(es, EN_HSCROLL);
4412 }
4413 break;
4414 case SB_ENDSCROLL:
4415 TRACE("SB_ENDSCROLL\n");
4416 break;
4417 /*
4418 * FIXME : the next two are undocumented !
4419 * Are we doing the right thing ?
4420 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
4421 * although it's also a regular control message.
4422 */
4423 case EM_GETTHUMB: /* this one is used by NT notepad */
4424 case EM_GETTHUMB16:
4425 {
4426 LRESULT ret;
4427 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
4428 ret = GetScrollPos(es->hwndSelf, SB_HORZ);
4429 else
4430 {
4431 /* Assume default scroll range 0-100 */
4432 INT fw = es->format_rect.right - es->format_rect.left;
4433 ret = es->text_width ? es->x_offset * 100 / (es->text_width - fw) : 0;
4434 }
4435 TRACE("EM_GETTHUMB: returning %ld\n", ret);
4436 return ret;
4437 }
4438 case EM_LINESCROLL16:
4439 TRACE("EM_LINESCROLL16\n");
4440 dx = pos;
4441 break;
4442
4443 default:
4444 ERR("undocumented WM_HSCROLL action %d (0x%04x), please report\n",
4445 action, action);
4446 return 0;
4447 }
4448 if (dx)
4449 {
4450 INT fw = es->format_rect.right - es->format_rect.left;
4451 /* check if we are going to move too far */
4452 if(es->x_offset + dx + fw > es->text_width)
4453 dx = es->text_width - fw - es->x_offset;
4454 if(dx)
4455 EDIT_EM_LineScroll_internal(es, dx, 0);
4456 }
4457 return 0;
4458 }
4459
4460
4461 /*********************************************************************
4462 *
4463 * EDIT_CheckCombo
4464 *
4465 */
4466 static BOOL EDIT_CheckCombo(EDITSTATE *es, UINT msg, INT key)
4467 {
4468 HWND hLBox = es->hwndListBox;
4469 HWND hCombo;
4470 BOOL bDropped;
4471 int nEUI;
4472
4473 if (!hLBox)
4474 return FALSE;
4475
4476 hCombo = GetParent(es->hwndSelf);
4477 bDropped = TRUE;
4478 nEUI = 0;
4479
4480 TRACE_(combo)("[%p]: handling msg %x (%x)\n", es->hwndSelf, msg, key);
4481
4482 if (key == VK_UP || key == VK_DOWN)
4483 {
4484 if (SendMessageW(hCombo, CB_GETEXTENDEDUI, 0, 0))
4485 nEUI = 1;
4486
4487 if (msg == WM_KEYDOWN || nEUI)
4488 bDropped = (BOOL)SendMessageW(hCombo, CB_GETDROPPEDSTATE, 0, 0);
4489 }
4490
4491 switch (msg)
4492 {
4493 case WM_KEYDOWN:
4494 if (!bDropped && nEUI && (key == VK_UP || key == VK_DOWN))
4495 {
4496 /* make sure ComboLBox pops up */
4497 SendMessageW(hCombo, CB_SETEXTENDEDUI, FALSE, 0);
4498 key = VK_F4;
4499 nEUI = 2;
4500 }
4501
4502 SendMessageW(hLBox, WM_KEYDOWN, (WPARAM)key, 0);
4503 break;
4504
4505 case WM_SYSKEYDOWN: /* Handle Alt+up/down arrows */
4506 if (nEUI)
4507 SendMessageW(hCombo, CB_SHOWDROPDOWN, bDropped ? FALSE : TRUE, 0);
4508 else
4509 SendMessageW(hLBox, WM_KEYDOWN, (WPARAM)VK_F4, 0);
4510 break;
4511 }
4512
4513 if(nEUI == 2)
4514 SendMessageW(hCombo, CB_SETEXTENDEDUI, TRUE, 0);
4515
4516 return TRUE;
4517 }
4518
4519
4520 /*********************************************************************
4521 *
4522 * WM_KEYDOWN
4523 *
4524 * Handling of special keys that don't produce a WM_CHAR
4525 * (i.e. non-printable keys) & Backspace & Delete
4526 *
4527 */
4528 static LRESULT EDIT_WM_KeyDown(EDITSTATE *es, INT key)
4529 {
4530 BOOL shift;
4531 BOOL control;
4532
4533 if (GetKeyState(VK_MENU) & 0x8000)
4534 return 0;
4535
4536 shift = GetKeyState(VK_SHIFT) & 0x8000;
4537 control = GetKeyState(VK_CONTROL) & 0x8000;
4538
4539 switch (key) {
4540 case VK_F4:
4541 case VK_UP:
4542 if (EDIT_CheckCombo(es, WM_KEYDOWN, key) || key == VK_F4)
4543 break;
4544
4545 /* fall through */
4546 case VK_LEFT:
4547 if ((es->style & ES_MULTILINE) && (key == VK_UP))
4548 EDIT_MoveUp_ML(es, shift);
4549 else
4550 if (control)
4551 EDIT_MoveWordBackward(es, shift);
4552 else
4553 EDIT_MoveBackward(es, shift);
4554 break;
4555 case VK_DOWN:
4556 if (EDIT_CheckCombo(es, WM_KEYDOWN, key))
4557 break;
4558 /* fall through */
4559 case VK_RIGHT:
4560 if ((es->style & ES_MULTILINE) && (key == VK_DOWN))
4561 EDIT_MoveDown_ML(es, shift);
4562 else if (control)
4563 EDIT_MoveWordForward(es, shift);
4564 else
4565 EDIT_MoveForward(es, shift);
4566 break;
4567 case VK_HOME:
4568 EDIT_MoveHome(es, shift, control);
4569 break;
4570 case VK_END:
4571 EDIT_MoveEnd(es, shift);
4572 break;
4573 case VK_PRIOR:
4574 if (es->style & ES_MULTILINE)
4575 EDIT_MovePageUp_ML(es, shift);
4576 else
4577 EDIT_CheckCombo(es, WM_KEYDOWN, key);
4578 break;
4579 case VK_NEXT:
4580 if (es->style & ES_MULTILINE)
4581 EDIT_MovePageDown_ML(es, shift);
4582 else
4583 EDIT_CheckCombo(es, WM_KEYDOWN, key);
4584 break;
4585 case VK_DELETE:
4586 if (!(es->style & ES_READONLY) && !(shift && control)) {
4587 if (es->selection_start != es->selection_end) {
4588 if (shift)
4589 EDIT_WM_Cut(es);
4590 else
4591 EDIT_WM_Clear(es);
4592 } else {
4593 if (shift) {
4594 /* delete character left of caret */
4595 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4596 EDIT_MoveBackward(es, TRUE);
4597 EDIT_WM_Clear(es);
4598 } else if (control) {
4599 /* delete to end of line */
4600 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4601 EDIT_MoveEnd(es, TRUE);
4602 EDIT_WM_Clear(es);
4603 } else {
4604 /* delete character right of caret */
4605 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4606 EDIT_MoveForward(es, TRUE);
4607 EDIT_WM_Clear(es);
4608 }
4609 }
4610 }
4611 break;
4612 case VK_INSERT:
4613 if (shift) {
4614 if (!(es->style & ES_READONLY))
4615 EDIT_WM_Paste(es);
4616 } else if (control)
4617 EDIT_WM_Copy(es);
4618 break;
4619 case VK_RETURN:
4620 /* If the edit doesn't want the return send a message to the default object */
4621 if(!(es->style & ES_MULTILINE) || !(es->style & ES_WANTRETURN))
4622 {
4623 HWND hwndParent = GetParent(es->hwndSelf);
4624 DWORD dw = SendMessageW( hwndParent, DM_GETDEFID, 0, 0 );
4625 if (HIWORD(dw) == DC_HASDEFID)
4626 {
4627 SendMessageW( hwndParent, WM_COMMAND,
4628 MAKEWPARAM( LOWORD(dw), BN_CLICKED ),
4629 (LPARAM)GetDlgItem( hwndParent, LOWORD(dw) ) );
4630 }
4631 else
4632 SendMessageW( hwndParent, WM_COMMAND, IDOK, (LPARAM)GetDlgItem( hwndParent, IDOK ) );
4633 }
4634 break;
4635 case VK_ESCAPE:
4636 if (!(es->style & ES_MULTILINE))
4637 SendMessageW(GetParent(es->hwndSelf), WM_COMMAND, IDCANCEL, (LPARAM)GetDlgItem( GetParent(es->hwndSelf), IDCANCEL ) );
4638 break;
4639 case VK_TAB:
4640 SendMessageW(es->hwndParent, WM_NEXTDLGCTL, shift, 0);
4641 break;
4642 }
4643 return 0;
4644 }
4645
4646
4647 /*********************************************************************
4648 *
4649 * WM_KILLFOCUS
4650 *
4651 */
4652 static LRESULT EDIT_WM_KillFocus(EDITSTATE *es)
4653 {
4654 es->flags &= ~EF_FOCUSED;
4655 DestroyCaret();
4656 if(!(es->style & ES_NOHIDESEL))
4657 EDIT_InvalidateText(es, es->selection_start, es->selection_end);
4658 EDIT_NOTIFY_PARENT(es, EN_KILLFOCUS);
4659 return 0;
4660 }
4661
4662
4663 /*********************************************************************
4664 *
4665 * WM_LBUTTONDBLCLK
4666 *
4667 * The caret position has been set on the WM_LBUTTONDOWN message
4668 *
4669 */
4670 static LRESULT EDIT_WM_LButtonDblClk(EDITSTATE *es)
4671 {
4672 INT s;
4673 INT e = es->selection_end;
4674 INT l;
4675 INT li;
4676 INT ll;
4677
4678 es->bCaptureState = TRUE;
4679 SetCapture(es->hwndSelf);
4680
4681 l = EDIT_EM_LineFromChar(es, e);
4682 li = EDIT_EM_LineIndex(es, l);
4683 ll = EDIT_EM_LineLength(es, e);
4684 s = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_LEFT);
4685 e = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_RIGHT);
4686 EDIT_EM_SetSel(es, s, e, FALSE);
4687 EDIT_EM_ScrollCaret(es);
4688 es->region_posx = es->region_posy = 0;
4689 SetTimer(es->hwndSelf, 0, 100, NULL);
4690 return 0;
4691 }
4692
4693
4694 /*********************************************************************
4695 *
4696 * WM_LBUTTONDOWN
4697 *
4698 */
4699 static LRESULT EDIT_WM_LButtonDown(EDITSTATE *es, DWORD keys, INT x, INT y)
4700 {
4701 INT e;
4702 BOOL after_wrap;
4703
4704 es->bCaptureState = TRUE;
4705 SetCapture(es->hwndSelf);
4706 EDIT_ConfinePoint(es, &x, &y);
4707 e = EDIT_CharFromPos(es, x, y, &after_wrap);
4708 EDIT_EM_SetSel(es, (keys & MK_SHIFT) ? es->selection_start : e, e, after_wrap);
4709 EDIT_EM_ScrollCaret(es);
4710 es->region_posx = es->region_posy = 0;
4711 SetTimer(es->hwndSelf, 0, 100, NULL);
4712
4713 if (!(es->flags & EF_FOCUSED))
4714 SetFocus(es->hwndSelf);
4715
4716 return 0;
4717 }
4718
4719
4720 /*********************************************************************
4721 *
4722 * WM_LBUTTONUP
4723 *
4724 */
4725 static LRESULT EDIT_WM_LButtonUp(EDITSTATE *es)
4726 {
4727 if (es->bCaptureState) {
4728 KillTimer(es->hwndSelf, 0);
4729 if (GetCapture() == es->hwndSelf) ReleaseCapture();
4730 }
4731 es->bCaptureState = FALSE;
4732 return 0;
4733 }
4734
4735
4736 /*********************************************************************
4737 *
4738 * WM_MBUTTONDOWN
4739 *
4740 */
4741 static LRESULT EDIT_WM_MButtonDown(EDITSTATE *es)
4742 {
4743 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
4744 return 0;
4745 }
4746
4747
4748 /*********************************************************************
4749 *
4750 * WM_MOUSEMOVE
4751 *
4752 */
4753 static LRESULT EDIT_WM_MouseMove(EDITSTATE *es, INT x, INT y)
4754 {
4755 INT e;
4756 BOOL after_wrap;
4757 INT prex, prey;
4758
4759 /* If the mouse has been captured by process other than the edit control itself,
4760 * the windows edit controls will not select the strings with mouse move.
4761 */
4762 if (!es->bCaptureState || GetCapture() != es->hwndSelf)
4763 return 0;
4764
4765 /*
4766 * FIXME: gotta do some scrolling if outside client
4767 * area. Maybe reset the timer ?
4768 */
4769 prex = x; prey = y;
4770 EDIT_ConfinePoint(es, &x, &y);
4771 es->region_posx = (prex < x) ? -1 : ((prex > x) ? 1 : 0);
4772 es->region_posy = (prey < y) ? -1 : ((prey > y) ? 1 : 0);
4773 e = EDIT_CharFromPos(es, x, y, &after_wrap);
4774 EDIT_EM_SetSel(es, es->selection_start, e, after_wrap);
4775 EDIT_SetCaretPos(es,es->selection_end,es->flags & EF_AFTER_WRAP);
4776 return 0;
4777 }
4778
4779
4780 /*********************************************************************
4781 *
4782 * WM_NCCREATE
4783 *
4784 * See also EDIT_WM_StyleChanged
4785 */
4786 static LRESULT EDIT_WM_NCCreate(HWND hwnd, LPCREATESTRUCTW lpcs, BOOL unicode)
4787 {
4788 EDITSTATE *es;
4789 UINT alloc_size;
4790
4791 TRACE("Creating %s edit control, style = %08x\n",
4792 unicode ? "Unicode" : "ANSI", lpcs->style);
4793
4794 if (!(es = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*es))))
4795 return FALSE;
4796 SetWindowLongPtrW( hwnd, 0, (LONG_PTR)es );
4797
4798 /*
4799 * Note: since the EDITSTATE has not been fully initialized yet,
4800 * we can't use any API calls that may send
4801 * WM_XXX messages before WM_NCCREATE is completed.
4802 */
4803
4804 es->is_unicode = unicode;
4805 es->style = lpcs->style;
4806
4807 es->bEnableState = !(es->style & WS_DISABLED);
4808
4809 es->hwndSelf = hwnd;
4810 /* Save parent, which will be notified by EN_* messages */
4811 es->hwndParent = lpcs->hwndParent;
4812
4813 if (es->style & ES_COMBO)
4814 es->hwndListBox = GetDlgItem(es->hwndParent, ID_CB_LISTBOX);
4815
4816 /* Number overrides lowercase overrides uppercase (at least it
4817 * does in Win95). However I'll bet that ES_NUMBER would be
4818 * invalid under Win 3.1.
4819 */
4820 if (es->style & ES_NUMBER) {
4821 ; /* do not override the ES_NUMBER */
4822 } else if (es->style & ES_LOWERCASE) {
4823 es->style &= ~ES_UPPERCASE;
4824 }
4825 if (es->style & ES_MULTILINE) {
4826 es->buffer_limit = BUFLIMIT_INITIAL;
4827 if (es->style & WS_VSCROLL)
4828 es->style |= ES_AUTOVSCROLL;
4829 if (es->style & WS_HSCROLL)
4830 es->style |= ES_AUTOHSCROLL;
4831 es->style &= ~ES_PASSWORD;
4832 if ((es->style & ES_CENTER) || (es->style & ES_RIGHT)) {
4833 /* Confirmed - RIGHT overrides CENTER */
4834 if (es->style & ES_RIGHT)
4835 es->style &= ~ES_CENTER;
4836 es->style &= ~WS_HSCROLL;
4837 es->style &= ~ES_AUTOHSCROLL;
4838 }
4839 } else {
4840 es->buffer_limit = BUFLIMIT_INITIAL;
4841 if ((es->style & ES_RIGHT) && (es->style & ES_CENTER))
4842 es->style &= ~ES_CENTER;
4843 es->style &= ~WS_HSCROLL;
4844 es->style &= ~WS_VSCROLL;
4845 if (es->style & ES_PASSWORD)
4846 es->password_char = '*';
4847 }
4848
4849 alloc_size = ROUND_TO_GROW((es->buffer_size + 1) * sizeof(WCHAR));
4850 if(!(es->hloc32W = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
4851 return FALSE;
4852 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
4853
4854 if (!(es->undo_text = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (es->buffer_size + 1) * sizeof(WCHAR))))
4855 return FALSE;
4856 es->undo_buffer_size = es->buffer_size;
4857
4858 if (es->style & ES_MULTILINE)
4859 if (!(es->first_line_def = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(LINEDEF))))
4860 return FALSE;
4861 es->line_count = 1;
4862
4863 /*
4864 * In Win95 look and feel, the WS_BORDER style is replaced by the
4865 * WS_EX_CLIENTEDGE style for the edit control. This gives the edit
4866 * control a nonclient area so we don't need to draw the border.
4867 * If WS_BORDER without WS_EX_CLIENTEDGE is specified we shouldn't have
4868 * a nonclient area and we should handle painting the border ourselves.
4869 *
4870 * When making modifications please ensure that the code still works
4871 * for edit controls created directly with style 0x50800000, exStyle 0
4872 * (which should have a single pixel border)
4873 */
4874 if (lpcs->dwExStyle & WS_EX_CLIENTEDGE)
4875 es->style &= ~WS_BORDER;
4876 else if (es->style & WS_BORDER)
4877 SetWindowLongW(hwnd, GWL_STYLE, es->style & ~WS_BORDER);
4878
4879 return TRUE;
4880 }
4881
4882 /*********************************************************************
4883 *
4884 * WM_PAINT
4885 *
4886 */
4887 static void EDIT_WM_Paint(EDITSTATE *es, HDC hdc)
4888 {
4889 PAINTSTRUCT ps;
4890 INT i;
4891 HDC dc;
4892 HFONT old_font = 0;
4893 RECT rc;
4894 RECT rcClient;
4895 RECT rcLine;
4896 RECT rcRgn;
4897 HBRUSH brush;
4898 HBRUSH old_brush;
4899 INT bw, bh;
4900 BOOL rev = es->bEnableState &&
4901 ((es->flags & EF_FOCUSED) ||
4902 (es->style & ES_NOHIDESEL));
4903 dc = hdc ? hdc : BeginPaint(es->hwndSelf, &ps);
4904
4905 GetClientRect(es->hwndSelf, &rcClient);
4906
4907 /* get the background brush */
4908 brush = EDIT_NotifyCtlColor(es, dc);
4909
4910 /* paint the border and the background */
4911 IntersectClipRect(dc, rcClient.left, rcClient.top, rcClient.right, rcClient.bottom);
4912
4913 if(es->style & WS_BORDER) {
4914 bw = GetSystemMetrics(SM_CXBORDER);
4915 bh = GetSystemMetrics(SM_CYBORDER);
4916 rc = rcClient;
4917 if(es->style & ES_MULTILINE) {
4918 if(es->style & WS_HSCROLL) rc.bottom+=bh;
4919 if(es->style & WS_VSCROLL) rc.right+=bw;
4920 }
4921
4922 /* Draw the frame. Same code as in nonclient.c */
4923 old_brush = SelectObject(dc, GetSysColorBrush(COLOR_WINDOWFRAME));
4924 PatBlt(dc, rc.left, rc.top, rc.right - rc.left, bh, PATCOPY);
4925 PatBlt(dc, rc.left, rc.top, bw, rc.bottom - rc.top, PATCOPY);
4926 PatBlt(dc, rc.left, rc.bottom - 1, rc.right - rc.left, -bw, PATCOPY);
4927 PatBlt(dc, rc.right - 1, rc.top, -bw, rc.bottom - rc.top, PATCOPY);
4928 SelectObject(dc, old_brush);
4929
4930 /* Keep the border clean */
4931 IntersectClipRect(dc, rc.left+bw, rc.top+bh,
4932 max(rc.right-bw, rc.left+bw), max(rc.bottom-bh, rc.top+bh));
4933 }
4934
4935 GetClipBox(dc, &rc);
4936 FillRect(dc, &rc, brush);
4937
4938 IntersectClipRect(dc, es->format_rect.left,
4939 es->format_rect.top,
4940 es->format_rect.right,
4941 es->format_rect.bottom);
4942 if (es->style & ES_MULTILINE) {
4943 rc = rcClient;
4944 IntersectClipRect(dc, rc.left, rc.top, rc.right, rc.bottom);
4945 }
4946 if (es->font)
4947 old_font = SelectObject(dc, es->font);
4948
4949 if (!es->bEnableState)
4950 SetTextColor(dc, GetSysColor(COLOR_GRAYTEXT));
4951 GetClipBox(dc, &rcRgn);
4952 if (es->style & ES_MULTILINE) {
4953 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
4954 for (i = es->y_offset ; i <= min(es->y_offset + vlc, es->y_offset + es->line_count - 1) ; i++) {
4955 EDIT_GetLineRect(es, i, 0, -1, &rcLine);
4956 if (IntersectRect(&rc, &rcRgn, &rcLine))
4957 EDIT_PaintLine(es, dc, i, rev);
4958 }
4959 } else {
4960 EDIT_GetLineRect(es, 0, 0, -1, &rcLine);
4961 if (IntersectRect(&rc, &rcRgn, &rcLine))
4962 EDIT_PaintLine(es, dc, 0, rev);
4963 }
4964 if (es->font)
4965 SelectObject(dc, old_font);
4966
4967 if (!hdc)
4968 EndPaint(es->hwndSelf, &ps);
4969 }
4970
4971
4972 /*********************************************************************
4973 *
4974 * WM_PASTE
4975 *
4976 */
4977 static void EDIT_WM_Paste(EDITSTATE *es)
4978 {
4979 HGLOBAL hsrc;
4980 LPWSTR src;
4981
4982 /* Protect read-only edit control from modification */
4983 if(es->style & ES_READONLY)
4984 return;
4985
4986 OpenClipboard(es->hwndSelf);
4987 if ((hsrc = GetClipboardData(CF_UNICODETEXT))) {
4988 src = (LPWSTR)GlobalLock(hsrc);
4989 EDIT_EM_ReplaceSel(es, TRUE, src, TRUE, TRUE);
4990 GlobalUnlock(hsrc);
4991 }
4992 else if (es->style & ES_PASSWORD) {
4993 /* clear selected text in password edit box even with empty clipboard */
4994 const WCHAR empty_strW[] = { 0 };
4995 EDIT_EM_ReplaceSel(es, TRUE, empty_strW, TRUE, TRUE);
4996 }
4997 CloseClipboard();
4998 }
4999
5000
5001 /*********************************************************************
5002 *
5003 * WM_SETFOCUS
5004 *
5005 */
5006 static void EDIT_WM_SetFocus(EDITSTATE *es)
5007 {
5008 es->flags |= EF_FOCUSED;
5009
5010 if (!(es->style & ES_NOHIDESEL))
5011 EDIT_InvalidateText(es, es->selection_start, es->selection_end);
5012
5013 /* single line edit updates itself */
5014 if (!(es->style & ES_MULTILINE))
5015 {
5016 HDC hdc = GetDC(es->hwndSelf);
5017 EDIT_WM_Paint(es, hdc);
5018 ReleaseDC(es->hwndSelf, hdc);
5019 }
5020
5021 CreateCaret(es->hwndSelf, 0, 2, es->line_height);
5022 EDIT_SetCaretPos(es, es->selection_end,
5023 es->flags & EF_AFTER_WRAP);
5024 ShowCaret(es->hwndSelf);
5025 EDIT_NOTIFY_PARENT(es, EN_SETFOCUS);
5026 }
5027
5028
5029 /*********************************************************************
5030 *
5031 * WM_SETFONT
5032 *
5033 * With Win95 look the margins are set to default font value unless
5034 * the system font (font == 0) is being set, in which case they are left
5035 * unchanged.
5036 *
5037 */
5038 static void EDIT_WM_SetFont(EDITSTATE *es, HFONT font, BOOL redraw)
5039 {
5040 TEXTMETRICW tm;
5041 HDC dc;
5042 HFONT old_font = 0;
5043 RECT clientRect;
5044
5045 es->font = font;
5046 dc = GetDC(es->hwndSelf);
5047 if (font)
5048 old_font = SelectObject(dc, font);
5049 GetTextMetricsW(dc, &tm);
5050 es->line_height = tm.tmHeight;
5051 es->char_width = tm.tmAveCharWidth;
5052 if (font)
5053 SelectObject(dc, old_font);
5054 ReleaseDC(es->hwndSelf, dc);
5055
5056 /* Reset the format rect and the margins */
5057 GetClientRect(es->hwndSelf, &clientRect);
5058 EDIT_SetRectNP(es, &clientRect);
5059 EDIT_EM_SetMargins(es, EC_LEFTMARGIN | EC_RIGHTMARGIN,
5060 EC_USEFONTINFO, EC_USEFONTINFO, FALSE);
5061
5062 if (es->style & ES_MULTILINE)
5063 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
5064 else
5065 EDIT_CalcLineWidth_SL(es);
5066
5067 if (redraw)
5068 EDIT_UpdateText(es, NULL, TRUE);
5069 if (es->flags & EF_FOCUSED) {
5070 DestroyCaret();
5071 CreateCaret(es->hwndSelf, 0, 2, es->line_height);
5072 EDIT_SetCaretPos(es, es->selection_end,
5073 es->flags & EF_AFTER_WRAP);
5074 ShowCaret(es->hwndSelf);
5075 }
5076 }
5077
5078
5079 /*********************************************************************
5080 *
5081 * WM_SETTEXT
5082 *
5083 * NOTES
5084 * For multiline controls (ES_MULTILINE), reception of WM_SETTEXT triggers:
5085 * The modified flag is reset. No notifications are sent.
5086 *
5087 * For single-line controls, reception of WM_SETTEXT triggers:
5088 * The modified flag is reset. EN_UPDATE and EN_CHANGE notifications are sent.
5089 *
5090 */
5091 static void EDIT_WM_SetText(EDITSTATE *es, LPCWSTR text, BOOL unicode)
5092 {
5093 LPWSTR textW = NULL;
5094 if (!unicode && text)
5095 {
5096 LPCSTR textA = (LPCSTR)text;
5097 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
5098 textW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR));
5099 if (textW)
5100 MultiByteToWideChar(CP_ACP, 0, textA, -1, textW, countW);
5101 text = textW;
5102 }
5103
5104 if (es->flags & EF_UPDATE)
5105 /* fixed this bug once; complain if we see it about to happen again. */
5106 ERR("SetSel may generate UPDATE message whose handler may reset "
5107 "selection.\n");
5108
5109 EDIT_EM_SetSel(es, 0, (UINT)-1, FALSE);
5110 if (text)
5111 {
5112 TRACE("%s\n", debugstr_w(text));
5113 EDIT_EM_ReplaceSel(es, FALSE, text, FALSE, FALSE);
5114 if(!unicode)
5115 HeapFree(GetProcessHeap(), 0, textW);
5116 }
5117 else
5118 {
5119 static const WCHAR empty_stringW[] = {0};
5120 TRACE("<NULL>\n");
5121 EDIT_EM_ReplaceSel(es, FALSE, empty_stringW, FALSE, FALSE);
5122 }
5123 es->x_offset = 0;
5124 es->flags &= ~EF_MODIFIED;
5125 EDIT_EM_SetSel(es, 0, 0, FALSE);
5126
5127 /* Send the notification after the selection start and end have been set
5128 * edit control doesn't send notification on WM_SETTEXT
5129 * if it is multiline, or it is part of combobox
5130 */
5131 if( !((es->style & ES_MULTILINE) || es->hwndListBox))
5132 {
5133 EDIT_NOTIFY_PARENT(es, EN_UPDATE);
5134 EDIT_NOTIFY_PARENT(es, EN_CHANGE);
5135 }
5136 EDIT_EM_ScrollCaret(es);
5137 EDIT_UpdateScrollInfo(es);
5138 }
5139
5140
5141 /*********************************************************************
5142 *
5143 * WM_SIZE
5144 *
5145 */
5146 static void EDIT_WM_Size(EDITSTATE *es, UINT action, INT width, INT height)
5147 {
5148 if ((action == SIZE_MAXIMIZED) || (action == SIZE_RESTORED)) {
5149 RECT rc;
5150 TRACE("width = %d, height = %d\n", width, height);
5151 SetRect(&rc, 0, 0, width, height);
5152 EDIT_SetRectNP(es, &rc);
5153 EDIT_UpdateText(es, NULL, TRUE);
5154 }
5155 }
5156
5157
5158 /*********************************************************************
5159 *
5160 * WM_STYLECHANGED
5161 *
5162 * This message is sent by SetWindowLong on having changed either the Style
5163 * or the extended style.
5164 *
5165 * We ensure that the window's version of the styles and the EDITSTATE's agree.
5166 *
5167 * See also EDIT_WM_NCCreate
5168 *
5169 * It appears that the Windows version of the edit control allows the style
5170 * (as retrieved by GetWindowLong) to be any value and maintains an internal
5171 * style variable which will generally be different. In this function we
5172 * update the internal style based on what changed in the externally visible
5173 * style.
5174 *
5175 * Much of this content as based upon the MSDN, especially:
5176 * Platform SDK Documentation -> User Interface Services ->
5177 * Windows User Interface -> Edit Controls -> Edit Control Reference ->
5178 * Edit Control Styles
5179 */
5180 static LRESULT EDIT_WM_StyleChanged ( EDITSTATE *es, WPARAM which, const STYLESTRUCT *style)
5181 {
5182 if (GWL_STYLE == which) {
5183 DWORD style_change_mask;
5184 DWORD new_style;
5185 /* Only a subset of changes can be applied after the control
5186 * has been created.
5187 */
5188 style_change_mask = ES_UPPERCASE | ES_LOWERCASE |
5189 ES_NUMBER;
5190 if (es->style & ES_MULTILINE)
5191 style_change_mask |= ES_WANTRETURN;
5192
5193 new_style = style->styleNew & style_change_mask;
5194
5195 /* Number overrides lowercase overrides uppercase (at least it
5196 * does in Win95). However I'll bet that ES_NUMBER would be
5197 * invalid under Win 3.1.
5198 */
5199 if (new_style & ES_NUMBER) {
5200 ; /* do not override the ES_NUMBER */
5201 } else if (new_style & ES_LOWERCASE) {
5202 new_style &= ~ES_UPPERCASE;
5203 }
5204
5205 es->style = (es->style & ~style_change_mask) | new_style;
5206 } else if (GWL_EXSTYLE == which) {
5207 ; /* FIXME - what is needed here */
5208 } else {
5209 WARN ("Invalid style change %ld\n",which);
5210 }
5211
5212 return 0;
5213 }
5214
5215 /*********************************************************************
5216 *
5217 * WM_SYSKEYDOWN
5218 *
5219 */
5220 static LRESULT EDIT_WM_SysKeyDown(EDITSTATE *es, INT key, DWORD key_data)
5221 {
5222 if ((key == VK_BACK) && (key_data & 0x2000)) {
5223 if (EDIT_EM_CanUndo(es))
5224 EDIT_EM_Undo(es);
5225 return 0;
5226 } else if (key == VK_UP || key == VK_DOWN) {
5227 if (EDIT_CheckCombo(es, WM_SYSKEYDOWN, key))
5228 return 0;
5229 }
5230 return DefWindowProcW(es->hwndSelf, WM_SYSKEYDOWN, (WPARAM)key, (LPARAM)key_data);
5231 }
5232
5233
5234 /*********************************************************************
5235 *
5236 * WM_TIMER
5237 *
5238 */
5239 static void EDIT_WM_Timer(EDITSTATE *es)
5240 {
5241 if (es->region_posx < 0) {
5242 EDIT_MoveBackward(es, TRUE);
5243 } else if (es->region_posx > 0) {
5244 EDIT_MoveForward(es, TRUE);
5245 }
5246 /*
5247 * FIXME: gotta do some vertical scrolling here, like
5248 * EDIT_EM_LineScroll(hwnd, 0, 1);
5249 */
5250 }
5251
5252 /*********************************************************************
5253 *
5254 * WM_VSCROLL
5255 *
5256 */
5257 static LRESULT EDIT_WM_VScroll(EDITSTATE *es, INT action, INT pos)
5258 {
5259 INT dy;
5260
5261 if (!(es->style & ES_MULTILINE))
5262 return 0;
5263
5264 if (!(es->style & ES_AUTOVSCROLL))
5265 return 0;
5266
5267 dy = 0;
5268 switch (action) {
5269 case SB_LINEUP:
5270 case SB_LINEDOWN:
5271 case SB_PAGEUP:
5272 case SB_PAGEDOWN:
5273 TRACE("action %d (%s)\n", action, (action == SB_LINEUP ? "SB_LINEUP" :
5274 (action == SB_LINEDOWN ? "SB_LINEDOWN" :
5275 (action == SB_PAGEUP ? "SB_PAGEUP" :
5276 "SB_PAGEDOWN"))));
5277 EDIT_EM_Scroll(es, action);
5278 return 0;
5279 case SB_TOP:
5280 TRACE("SB_TOP\n");
5281 dy = -es->y_offset;
5282 break;
5283 case SB_BOTTOM:
5284 TRACE("SB_BOTTOM\n");
5285 dy = es->line_count - 1 - es->y_offset;
5286 break;
5287 case SB_THUMBTRACK:
5288 TRACE("SB_THUMBTRACK %d\n", pos);
5289 es->flags |= EF_VSCROLL_TRACK;
5290 if(es->style & WS_VSCROLL)
5291 dy = pos - es->y_offset;
5292 else
5293 {
5294 /* Assume default scroll range 0-100 */
5295 INT vlc, new_y;
5296 /* Sanity check */
5297 if(pos < 0 || pos > 100) return 0;
5298 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
5299 new_y = pos * (es->line_count - vlc) / 100;
5300 dy = es->line_count ? (new_y - es->y_offset) : 0;
5301 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
5302 es->line_count, es->y_offset, pos, dy);
5303 }
5304 break;
5305 case SB_THUMBPOSITION:
5306 TRACE("SB_THUMBPOSITION %d\n", pos);
5307 es->flags &= ~EF_VSCROLL_TRACK;
5308 if(es->style & WS_VSCROLL)
5309 dy = pos - es->y_offset;
5310 else
5311 {
5312 /* Assume default scroll range 0-100 */
5313 INT vlc, new_y;
5314 /* Sanity check */
5315 if(pos < 0 || pos > 100) return 0;
5316 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
5317 new_y = pos * (es->line_count - vlc) / 100;
5318 dy = es->line_count ? (new_y - es->y_offset) : 0;
5319 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
5320 es->line_count, es->y_offset, pos, dy);
5321 }
5322 if (!dy)
5323 {
5324 /* force scroll info update */
5325 EDIT_UpdateScrollInfo(es);
5326 EDIT_NOTIFY_PARENT(es, EN_VSCROLL);
5327 }
5328 break;
5329 case SB_ENDSCROLL:
5330 TRACE("SB_ENDSCROLL\n");
5331 break;
5332 /*
5333 * FIXME : the next two are undocumented !
5334 * Are we doing the right thing ?
5335 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
5336 * although it's also a regular control message.
5337 */
5338 case EM_GETTHUMB: /* this one is used by NT notepad */
5339 case EM_GETTHUMB16:
5340 {
5341 LRESULT ret;
5342 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_VSCROLL)
5343 ret = GetScrollPos(es->hwndSelf, SB_VERT);
5344 else
5345 {
5346 /* Assume default scroll range 0-100 */
5347 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
5348 ret = es->line_count ? es->y_offset * 100 / (es->line_count - vlc) : 0;
5349 }
5350 TRACE("EM_GETTHUMB: returning %ld\n", ret);
5351 return ret;
5352 }
5353 case EM_LINESCROLL16:
5354 TRACE("EM_LINESCROLL16 %d\n", pos);
5355 dy = pos;
5356 break;
5357
5358 default:
5359 ERR("undocumented WM_VSCROLL action %d (0x%04x), please report\n",
5360 action, action);
5361 return 0;
5362 }
5363 if (dy)
5364 EDIT_EM_LineScroll(es, 0, dy);
5365 return 0;
5366 }
5367
5368 /*********************************************************************
5369 *
5370 * EDIT_UpdateText
5371 *
5372 */
5373 static void EDIT_UpdateTextRegion(EDITSTATE *es, HRGN hrgn, BOOL bErase)
5374 {
5375 if (es->flags & EF_UPDATE) {
5376 es->flags &= ~EF_UPDATE;
5377 EDIT_NOTIFY_PARENT(es, EN_UPDATE);
5378 }
5379 InvalidateRgn(es->hwndSelf, hrgn, bErase);
5380 }
5381
5382
5383 /*********************************************************************
5384 *
5385 * EDIT_UpdateText
5386 *
5387 */
5388 static void EDIT_UpdateText(EDITSTATE *es, const RECT *rc, BOOL bErase)
5389 {
5390 if (es->flags & EF_UPDATE) {
5391 es->flags &= ~EF_UPDATE;
5392 EDIT_NOTIFY_PARENT(es, EN_UPDATE);
5393 }
5394 InvalidateRect(es->hwndSelf, rc, bErase);
5395 }
5396
5397 /********************************************************************
5398 *
5399 * The Following code is to handle inline editing from IMEs
5400 */
5401
5402 static void EDIT_GetCompositionStr(HWND hwnd, LPARAM CompFlag, EDITSTATE *es)
5403 {
5404 LONG buflen;
5405 LPWSTR lpCompStr = NULL;
5406 HIMC hIMC;
5407 LPSTR lpCompStrAttr = NULL;
5408 DWORD dwBufLenAttr;
5409
5410 if (!(hIMC = ImmGetContext(hwnd)))
5411 return;
5412
5413 buflen = ImmGetCompositionStringW(hIMC, GCS_COMPSTR, NULL, 0);
5414
5415 if (buflen < 0)
5416 {
5417 ImmReleaseContext(hwnd, hIMC);
5418 return;
5419 }
5420
5421 lpCompStr = HeapAlloc(GetProcessHeap(),0,buflen + sizeof(WCHAR));
5422 if (!lpCompStr)
5423 {
5424 ERR("Unable to allocate IME CompositionString\n");
5425 ImmReleaseContext(hwnd,hIMC);
5426 return;
5427 }
5428
5429 if (buflen)
5430 ImmGetCompositionStringW(hIMC, GCS_COMPSTR, lpCompStr, buflen);
5431 lpCompStr[buflen/sizeof(WCHAR)] = 0;
5432
5433 if (CompFlag & GCS_COMPATTR)
5434 {
5435 /*
5436 * We do not use the attributes yet. it would tell us what characters
5437 * are in transition and which are converted or decided upon
5438 */
5439 dwBufLenAttr = ImmGetCompositionStringW(hIMC, GCS_COMPATTR, NULL, 0);
5440 if (dwBufLenAttr)
5441 {
5442 dwBufLenAttr ++;
5443 lpCompStrAttr = HeapAlloc(GetProcessHeap(),0,dwBufLenAttr+1);
5444 if (!lpCompStrAttr)
5445 {
5446 ERR("Unable to allocate IME Attribute String\n");
5447 HeapFree(GetProcessHeap(),0,lpCompStr);
5448 ImmReleaseContext(hwnd,hIMC);
5449 return;
5450 }
5451 ImmGetCompositionStringW(hIMC,GCS_COMPATTR, lpCompStrAttr,
5452 dwBufLenAttr);
5453 lpCompStrAttr[dwBufLenAttr] = 0;
5454 }
5455 else
5456 lpCompStrAttr = NULL;
5457 }
5458
5459 /* check for change in composition start */
5460 if (es->selection_end < es->composition_start)
5461 es->composition_start = es->selection_end;
5462
5463 /* replace existing selection string */
5464 es->selection_start = es->composition_start;
5465
5466 if (es->composition_len > 0)
5467 es->selection_end = es->composition_start + es->composition_len;
5468 else
5469 es->selection_end = es->selection_start;
5470
5471 EDIT_EM_ReplaceSel(es, FALSE, lpCompStr, TRUE, TRUE);
5472 es->composition_len = abs(es->composition_start - es->selection_end);
5473
5474 es->selection_start = es->composition_start;
5475 es->selection_end = es->selection_start + es->composition_len;
5476
5477 HeapFree(GetProcessHeap(),0,lpCompStrAttr);
5478 HeapFree(GetProcessHeap(),0,lpCompStr);
5479 ImmReleaseContext(hwnd,hIMC);
5480 }
5481
5482 static void EDIT_GetResultStr(HWND hwnd, EDITSTATE *es)
5483 {
5484 LONG buflen;
5485 LPWSTR lpResultStr;
5486 HIMC hIMC;
5487
5488 if ( !(hIMC = ImmGetContext(hwnd)))
5489 return;
5490
5491 buflen = ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, NULL, 0);
5492 if (buflen <= 0)
5493 {
5494 ImmReleaseContext(hwnd, hIMC);
5495 return;
5496 }
5497
5498 lpResultStr = HeapAlloc(GetProcessHeap(),0, buflen+sizeof(WCHAR));
5499 if (!lpResultStr)
5500 {
5501 ERR("Unable to alloc buffer for IME string\n");
5502 ImmReleaseContext(hwnd, hIMC);
5503 return;
5504 }
5505
5506 ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, lpResultStr, buflen);
5507 lpResultStr[buflen/sizeof(WCHAR)] = 0;
5508
5509 /* check for change in composition start */
5510 if (es->selection_end < es->composition_start)
5511 es->composition_start = es->selection_end;
5512
5513 es->selection_start = es->composition_start;
5514 es->selection_end = es->composition_start + es->composition_len;
5515 EDIT_EM_ReplaceSel(es, TRUE, lpResultStr, TRUE, TRUE);
5516 es->composition_start = es->selection_end;
5517 es->composition_len = 0;
5518
5519 HeapFree(GetProcessHeap(),0,lpResultStr);
5520 ImmReleaseContext(hwnd, hIMC);
5521 }
5522
5523 static void EDIT_ImeComposition(HWND hwnd, LPARAM CompFlag, EDITSTATE *es)
5524 {
5525 if (CompFlag & GCS_RESULTSTR)
5526 EDIT_GetResultStr(hwnd,es);
5527 if (CompFlag & GCS_COMPSTR)
5528 EDIT_GetCompositionStr(hwnd, CompFlag, es);
5529 }
Windows API implementation